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List of Edison patents

Below is a list of Edison patents. Thomas Edison was an inventor who, it is said, accumulated 1500-plus patents worldwide for his inventions. Nearly 1100 of Edison's patents were in the United States, but other patents were approved in countries around the globe.

Introduction

Edison is credited for contributing to various innovation, including the phonograph, the kinetoscope, the dictaphone, radio, the electric lamp (in particular the incandescent light bulb), the autographic printer, and the tattoo machine. Edison was a prolific inventor of his time and it is reported that he holds a record 1,093 American patents in his name. Most of these inventions were not completely original but improvements of earlier patents. Many of his patents were actually made by his employees - Edison patented their work and did not share the credit of the innovation.

American patents

First hundred patents

The first hundred patents mainly deal with the telegraph system. John Kruesi was the shop manager beginning in 1872. Kruesi built models, instruments, and apparatus for Edison's work. John Ott worked with Edison throughout his career. Ott was Edison's main model and instrument maker. Charles Batchelor was a superintendent for Edison toward the end of this series of patents. Jonas Aylsworth worked, from the opening in 1887 of Edison's labs, testing materials for phonograph recordings.

  • patent number - name of patent (external links to patent images in TIFF format)
  • -- Electrographic Vote-Recorder : Edison's first patent. Permitted a "yes" or "no" vote via one of two switches. Washington congressmen were not interested in the device and the invention was a failure. (1869)
  • -- Printing-Telegraphs
  • -- Printing-Telegraph Apparatus
  • -- Automatic Electrical Switch for Telegraph Apparatus
  • -- Printing-Telegraph Apparatus
  • -- Electro-Motor Escapements
  • -- Printing-Telegraph Instruments
  • -- Governors for Electro-Motors
  • -- Printing-Telegraph Apparatus
  • -- Printing-Telegraph Apparatus
  • -- Telegraphic Transmitting Instruments
  • -- Relay-Magnets for Telegraph Instruments
  • -- Electro-Magnets for Telegraph Instruments
  • -- Machinery for Perforating Paper for Telegraph Purposes
  • -- Telegraph Apparatus (1872)
  • -- Printing-Telegraphs
  • -- Telegraph Apparatus
  • -- Telegraphic Recording Instruments
  • -- Type-Wheels for Printing-Telegraphs
  • -- Type-Wheels for Printing-Telegraphs
  • -- Printing-Telegraphs
  • -- Printing-Telegraphs
  • -- Printing-Telegraphs
  • -- Printing-Telegraphs
  • -- Printing-Telegraphs
  • -- Printing-Telegraphs
  • -- Printing-Telegraphs
  • -- Printing-Telegraphs
  • -- Printing-Telegraphs
  • -- Printing-Telegraphs
  • -- Printing-Telegraphs
  • -- Printing-Telegraph Instruments
  • -- Electro-Magnets
  • -- Rheotomes or Circuit-Directors
  • -- Printing-Telegraphs
  • -- Printing-Telegraphs
  • -- Printing-Telegraphs
  • -- Printing-Telegraphs
  • -- Printing-Telegraphs
  • -- Printing-Telegraphs
  • -- Printing-Telegraph Instruments
  • -- Printing-Telegraph Instruments
  • -- Transmitters and Circuits for Printing-Telegraphs
  • -- Unison-Stops for Printing-Telegraphs
  • -- Paper for Chemical Telegraphs etc.
  • -- Apparatus for Perforating Paper for Telegraphic Use
  • -- Electrical Printing-Machines
  • -- Type-Writing Machines
  • -- Printing-Telegraph Instruments (1873)
  • -- Automatic Telegraph Instruments
  • -- Electro-Magnetic Adjusters
  • -- Circuits for Chemical Telegraphs
  • -- Printing-Telegraphs
  • -- Printing-Telegraphs
  • -- Printing-Telegraphs
  • -- Printing-Telegraphs
  • -- Printing-Telegraphs
  • -- Printing-Telegraphs
  • -- Circuits for Printing-Telegraphs
  • -- Circuits for Automatic or Chemical Telegraphs
  • -- Circuits for Automatic Telegraphs
  • -- Chemical Telegraphs
  • -- Perforators for Automatic Telegraphs
  • -- Circuits for Automatic Telegraphs
  • -- Relay-Magnets
  • -- Electrical Regulators for Transmitting-Instruments
  • -- Galvanic Batteries
  • -- Telegraph-Signal Boxes
  • -- Electric Telegraphs
  • -- Perforators for Automatic Telegraphy
  • -- Chemical Telegraphs
  • -- Circuits for Chemical Telegraphs
  • -- Duplex Telegraphs
  • -- Telegraph-Relays
  • -- Receiving Instruments for Chemical Telegraphs
  • -- Chemical or Automatic Telegraphs
  • -- Automatic Telegraphy and Perforators Therefor
  • -- District Telegraph Signal-Boxes
  • -- Duplex Chemical Telegraphs
  • -- Telegraph Apparatus
  • -- Solutions for Chemical Telegraph-Paper
  • -- Solutions for Chemical Telegraph-Paper
  • -- Solutions for Chemical Telegraph-Paper
  • -- Adjustable Electro-Magnets for Relays, etc.
  • -- Solutions for Chemical Telegraph-Paper
  • -- Duplex Telegraphs
  • -- Chemical Telegraphy
  • -- Chemical Telegraphy
  • -- Chemical Telegraphy
  • -- Printing-Telegraphs
  • -- Transmitters and Receivers for Automatic Telegraphs
  • -- Automatic Telegraphs
  • -- Duplex Telegraphs
  • -- Solutions for Chemical Telegraphs
  • -- Solutions for Chemical Telegraphs
  • -- Recording-Points for Chemical Telegraphs
  • -- Electric-Signalling Instruments
  • -- Telegraph Apparatus
  • -- Automatic Roman-Character Telegraphs
  • -- Automatic Telegraphy

Second hundred

In the second hundred patents, Edison continues his work with the telegraph. He also starts to patent electrical distribution and the light. Francis R. Upton began working for Edison at Menlo Park in 1878.

  1. -- Duplex Telegraphs (1876)
  2. -- Duplex Telegraphs
  3. -- Duplex Telegraphs
  4. -- Autographic Printing
  5. -- Duplex Telegraphs
  6. -- Acoustic Telegraph
  7. -- Electro-Harmonic Multiplex Telegraphs
  8. -- Acoustic Electric Telegraphs
  9. -- Telegraphic Alarm and Signal Apparatus
  10. -- Automatic Telegraphs
  11. -- Automatic Telegraphs
  12. -- Stencil-Pens
  13. -- Telephonic Telegraphs
  14. -- Telephonic Telegraphs
  15. -- Telephonic or Electro-Harmonic Telegraphs
  16. -- Synchronous Movements for Electric Telegraphs
  17. -- Phonograph or Speaking Machines : The first phonograph, a device for recording and replaying sound. Edison demonstrated the device for the first time on November 29, 1878. The device recorded on a phonograph cylinder using up-down (vertical) motion of the stylus. Edison's patent specified that the audio recording was embossed.
  18. -- Acoustic Telegraphs
  19. -- Automatic-Telegraph Perforator and Transmitter
  20. -- Speaking-Machines
  21. -- Speaking-Telegraphs
  22. -- Speaking-Telegraphs
  23. -- Speaking-Telegraphs
  24. -- Speaking-Telephones
  25. -- Telephone Call-Signal
  26. -- Telephones or Speaking-Telegraphs
  27. -- Circuits for Acoustic or Telephonic Telegraphs
  28. -- Perforating Pens
  29. -- Pneumatic Stencil-Pens
  30. -- Duplex Telegraphs
  31. -- Duplex Telegraphs
  32. -- Speaking-Telephones
  33. -- Quadruplex-Telegraph Repeaters
  34. -- Vocal Engines
  35. -- Automatic Telegraphs
  36. -- Electric Lights
  37. -- Thermal Regulators for Electric Lights
  38. -- Sextuplex Telegraphs
  39. -- Duplex Telegraphs
  40. -- Magneto-Electric Machines
  41. -- Apparatus for Electric Lights
  42. -- Electric Lighting Apparatus
  43. -- Dynamo-Electric Machine
  44. -- Electric Lights
  45. -- Telephones
  46. -- Carbon-Telephones
  47. -- Magneto-Electric Machines : Edison main dynamo. The device's nickname was the "long-legged Mary-Ann". This device has large bipolar magnets and is highly inefficient.
  48. -- Electric Lamp : Edison's incandescent light bulb invention. The original spiral carbon-filament is shown and repeatedly referred to. First practical commercially viable electric lamp. This device replaced the flame lamp, gas lamp, kerosene-oil lamp, and wax candle.
  49. -- Electric-Lighting Apparatus
  50. -- Autographic Stencils for Printing
  51. -- Safety-Conductor for Electric Lights
  52. -- Electric Light
  53. -- Electric Light
  54. -- Electric Light
  55. -- Phonograph
  56. -- Magnetic Ore-Separator
  57. -- Brake for Electro-Magnetic Motors
  58. -- Method of Manufacturing Electric Lamps
  59. -- Addressing-Machine
  60. -- Electro-Chemical Receiving-Telephone
  61. -- Acoustic Telegraph
  62. -- Electric Light
  63. -- Magneto Signal Apparatus
  64. -- Manufacture of Carbons for Incandescent Electric Lamps
  65. -- System of Electric Lighting
  66. -- Treating Carbons for Electric Lamps
  67. -- Incandescing Electric Lamp
  68. -- Electric Lamp
  69. -- Method of Forming Enlarged Ends on Carbon Filaments
  70. -- System of Electric Lighting
  71. -- Electric Lamp
  72. -- Relay for Telegraphs
  73. -- Testing Electric-Light Carbons
  74. -- Electric Lamp
  75. -- Regulating the Generation of Electric Currents
  76. -- Electric Lamp
  77. -- Webermeter
  78. -- Incandescent Electric Lamp
  79. -- Incandescent Electric Lamp
  80. -- Magneto or Dynamo Electric Machine
  81. -- Electric Lighting
  82. -- Manufacturing Carbons for Electric Lamps
  83. -- Electric Meter
  84. -- Manufacture of Carbons for Electric Lamps
  85. -- Manufacturing Carbons for Electric Lights
  86. -- Electric Lamp
  87. -- Electric Lamp
  88. -- Fixture and Attachment for Electric Lamps
  89. -- Current-Regulator for Dynamo-Electric Machines
  90. -- System of Electric Lighting
  91. -- Carbonizer
  92. -- Fitting and Fixture for Electric Lamps
  93. -- Apparatus for Producing High Vacuums
  94. -- Apparatus for Treating Carbons for Electric Lamps
  95. -- Apparatus for Treating Carbons for Electric Lamps
  96. -- Manufacture of Incandescent Electric Lamps
  97. -- Electric Motor
  98. -- Electro-Magnetic Brake
  99. -- Preserving Fruit
  100. -- Magnetic Separator

201 to 300

The next series of patents Edison received was mainly for the electrical distribution of power and the electric light. In 1883, Edward H. Johnson, a business associate of Edison, persuaded Frank J. Sprague to work for Edison. One of Sprague's significant contributions to the Edison Laboratory was the introduction of mathematical methods.

  1. -- Vacuum Apparatus (1881)
  2. -- Governor for Electric Engines
  3. -- Utilizing Electricity as a Motive Power
  4. -- Depositing Cell for Plating the Connections of Electric Lamps, & c.
  5. -- Apparatus for Treating Carbons for Electric Lamps
  6. -- Webermeter
  7. -- Vacuum-Pump
  8. -- Dynamo-Electric Machine
  9. -- Electric Light
  10. -- Electric Lamp
  11. -- Carbon for Electric Lamps
  12. -- Electro-Magnetic Motor
  13. -- System of Electric Lighting
  14. -- Electric Lamp
  15. -- Manufacture of Electric Lamps
  16. -- Electric Meter
  17. -- Electric Lamp
  18. -- Electrical Governor
  19. -- Incandescent Electric Lamp
  20. -- Electric Lamp and the Manufacture Thereof
  21. -- Magneto or Dynamo Electric Machine
  22. -- System of Electric Lighting
  23. -- Underground Conductors
  24. -- Electric Chandelier
  25. -- Electric Lamp and Socket or Holder
  26. -- Regulator for Dynamo-Electric Machines
  27. -- Regulator for Magneto or Dynamo Electric Machines
  28. -- Webermeter
  29. -- Webermeter
  30. -- Electrical Drop-Light
  31. -- Telephone
  32. -- Telephone
  33. -- Magnetic Ore-Separator
  34. -- Electro-Magnetic Railway
  35. -- Dynamo or Magneto Electric Machine
  36. -- Regulator for Dynamo or Magneto Electric Machines
  37. -- Electric Lamp
  38. -- Regulator for Dynamo or Magneto Electric Machines
  39. -- Electric Chandelier
  40. -- Electric-Arc Light
  41. -- Manufacture of Carbons for Electric Lamps
  42. -- Dynamo-Electric Machine
  43. -- Straightening Carbons of Electric Incandescent Lamps
  44. -- Electrical Distribution System
  45. -- Magneto or Dynamo Electric Machine
  46. -- Mold for Carbonizing Incandescents
  47. -- Process of Making Incandescents
  48. -- Dynamo Magneto Electric Machine
  49. -- Vacuum Apparatus
  50. -- Dynamo or Magneto Electric Machine
  51. -- Commutator for Dynamo or Magneto Electric Machines
  52. -- Magneto or Dynamo Electric Machine
  53. -- Electric Lamp
  54. -- Electric Distribution and Translation System
  55. -- Magneto-Electric Machine
  56. -- System of Conductors for the Distribution of Electricity
  57. -- Dynamo or Magneto Electric Machine
  58. -- Dynamo or Magneto Electric Machine
  59. -- Dynamo or Magneto Electric Machine
  60. -- Dynamo or Magneto Electric Machine
  61. -- Manufacture of Incandescing Electric Lamps
  62. -- Incandescent Electric Lamp
  63. -- Incandescent Electric Lamp
  64. -- Incandescent Electric Lamp
  65. -- Incandescent Electric Lamp
  66. -- Incandescing Electric Lamp
  67. -- Incandescent Electric Lamp
  68. -- Incandescent Electric Lamp
  69. -- Regulator for Dynamo-Electric Machines
  70. -- Regulator for Dynamo-Electric Machines
  71. -- Regulator for Dynamo-Electric Machines
  72. -- Regulator for Dynamo-Electric Machines
  73. -- Regulator for Dynamo-Electric Machines
  74. -- Regulator for Dynamo-Electric Machines
  75. -- Regulator for Dynamo-Electric Machines
  76. -- Regulator for Dynamo-Electric Machines
  77. -- Regulator for Dynamo-Electric Machines
  78. -- Regulator for Dynamo-Electric Machines
  79. -- Regulator for Dynamo-Electric Machines
  80. -- Regulator for Dynamo-Electric Machines
  81. -- Regulator for Dynamo-Electric Machines
  82. -- Regulator for Dynamo-Electric Machines
  83. -- Regulator for Dynamo-Electric Machines
  84. -- Regulator for Dynamo-Electric Machines
  85. -- Electric Lamp and Holder for the Same
  86. -- Method of Maintaining Temperature in Webermeters
  87. -- Electric-Arc Light
  88. -- Electric-Lighting System
  89. -- Method of Treating Carbons for Electric Lamps
  90. -- Electro-Magnetic Railway-Engine
  91. -- Regulator for Dynamo-Electric Machines
  92. -- Regulator for Dynamo-Electric Machines
  93. -- Regulator for Dynamo-Electric Machines
  94. -- Regulator for Dynamo-Electric Machines
  95. -- Regulator for Dynamo-Electric Machines
  96. -- Regulator for Dynamo-Electric Machines
  97. -- Dynamo-Electric Machine
  98. -- Apparatus for the Electrical Transmission of Power
  99. -- Telephone
  100. -- Telephone

301 to 400

During the timeframe that the next few series of patents were obtained, the esteemed electrical engineer Nikola Tesla worked for Edison in America (beginning in 1884). When Tesla first arrived in the United States, he was offered a job by Edison when the latter saw his letter of recommendation from Charles Batchelor which read simply "I know two great men, and you are one of them. This young man is the other". Tesla's work for Edison began with simple electrical engineering. Eventually Tesla earned the respect of Edison and undertook a complete re-design of the Edison company's DC dynamos. Lewis Latimer also was under the employ of Edison companies (though never working with Edison).

  1. -- Electric Incandescent Lamp (1882)
  2. -- Vacuum Apparatus
  3. -- Electric Distribution System
  4. -- Dynamo or Magneto Electric Machine
  5. -- Incandescing Electric Lamp
  6. -- Manufacture of Incandescing Electric Lamps
  7. -- Shafting
  8. -- Governor for Dynamo-Electric Machines
  9. -- Regulator for Dynamo-Electric Machines
  10. -- Telephone
  11. -- Incandescing Electric Lamp
  12. -- Incandescing Electric Lamp
  13. -- Regulator for Dynamo-Electric Machines
  14. -- Regulator for Dynamo-Electric Machines
  15. -- Turn-Table for Electric Railways
  16. -- Electro-Magnetic Railway System
  17. -- Regulator for Driving Engines of Electrical Generators
  18. -- Secondary Battery
  19. -- Valve-Gear for Electrical Generator-Engines
  20. -- Electrical Railroad
  21. -- Magneto-Electric Signaling Apparatus
  22. -- Art of Malleableizing Iron
  23. -- System of Underground Conductors for Electrical Distribution
  24. -- System of Electrical Distribution
  25. -- Mold for Carbonizing
  26. -- Secondary Battery
  27. -- Electric Lamp
  28. -- Incandescing Electric Lamp
  29. -- Incandescent Electric Lamp
  30. -- Manufacture of Incandescents
  31. -- Transmitting-Telephone
  32. -- Telephone
  33. -- Manufacture of Incandescing Electric Lamps
  34. -- Incandescing Electric Lamp
  35. -- Means for Operating and Regulating Electrical Generators
  36. -- Electrical Generator and Motor
  37. -- Regulator for Dynamo-Electric Machines
  38. -- Regulator for Dynamo-Electric Machines
  39. -- Manufacture of Incandescing Electric Lamps
  40. -- Manufacture of Incandescing Electric Lamps
  41. -- Manufacture of Incandescing Electric Lamps
  42. -- Apparatus for Translating Electric Currents From High to Low Tension
  43. -- Dynamo-Electric Machine
  44. -- System of Electrical Distribution
  45. -- Regulator for Dynamo-Electric Machines
  46. -- Regulator for Dynamo-Electric Machines
  47. -- Electrical Generator
  48. -- Webermeter
  49. -- Dynamo or Magneto Electric Machine
  50. -- Magneto-Electric Signaling Apparatus
  51. -- System of Electrical Distribution
  52. -- System of Electrical Distribution
  53. -- System of Electrical Distribution
  54. -- System of Electrical Distribution
  55. -- Electric Regulator
  56. -- Dynamo-Electric Machine
  57. -- Dynamo-Electric Machine
  58. -- Dynamo-Electric Machine
  59. -- System of Electrical Distribution
  60. -- System of Electrical Distribution
  61. -- System of Electrical Distribution
  62. -- Method of Manufacturing Incandescing Electric Lamps
  63. -- Incandescing Electric Lamp
  64. -- Incandescing Conductor for Electric Lamps
  65. -- Dynamo or Magneto Electric Machine
  66. -- Mold for Carbonizing
  67. -- Dynamo or Magneto Electric Machine
  68. -- Regulator for Dynamo-Electric Machines
  69. -- Regulator for Systems of Electrical Distribution
  70. -- Regulator for Dynamo or Magneto Electric Machines
  71. -- Electrical Generator or Motor
  72. -- Insulation of Railroad-Tracks Used for Electrical Circuits
  73. -- Incandescent Electric Lamp
  74. -- Electrical Meter
  75. -- Type-Writer
  76. -- Electric-Arc Light
  77. -- Incandescent Electric Lamp
  78. -- Dynamo-Electric Machine
  79. -- Dynamo-Electric Machine
  80. -- Dynamo-Electric Machine
  81. -- Incandescing Conductor for Electric Lamps
  82. -- Electrical Conductor
  83. -- Dynamo-Electric Machine
  84. -- Method of Treating Carbons for Electric Lights
  85. -- Dynamo-Electric Machine
  86. -- Dynamo-Electric Machine
  87. -- Mode of Operating Dynamo-Electric Machines
  88. -- Electrical Meter
  89. -- Dynamo-Electric Machine
  90. -- Device for Protecting Electric-Light Systems from Lightning
  91. -- System of Electrical Distribution
  92. -- Incandescent Electric Lamp
  93. -- Electrical Conductor
  94. -- Filament for Incandescent Lamps
  95. -- Electrical Meter
  96. -- Electrical Indicator
  97. -- Chemical Stock Quotation Telegraph
  98. -- Incandescent Electric Lamp
  99. -- Incandescent Electric Lamp
  100. -- Incandescent Electric Lamp

401 to 500

Before losing the War of Currents, Edison continued to patent electrical distribution circuits and methods. He also continues to patent improvements in telegraphy, phonography, and lighting. Reginald Fessenden served as an electrician and a chemist for Edison. Fessenden left the Edison's lab around 1889. Arthur Edwin Kennelly contributed to a variety of Edison's endeavors undertaken to create a unique product or service from 1887 to 1893. Walter S. Mallory started working for Edison in 1888 (or 1889). Tesla was still working for Edison, but leaves before the end of this series of patents (ending his employ around 1886).

  1. -- Commutator for Dynamo-Electric Machines (1885)
  2. -- System of Electric Lighting
  3. -- System of Electric Lighting
  4. -- System of Electric Lighting
  5. -- Telephone
  6. -- Telegraphy
  7. -- Duplex Telegraphy
  8. -- Way-Station Quadruplex Telegraphy
  9. -- Mold for Carbonizing
  10. -- Telephone
  11. -- Electric Railway
  12. -- System of Electrical Distribution
  13. -- Telephonic Repeater
  14. -- Electrical Signaling Apparatus
  15. -- Telephone-Circuit
  16. -- Incandescent Electric Lamp
  17. -- Incandescing Electric Lamp
  18. -- System of Electrical Distribution
  19. -- Electrical Signaling Apparatus
  20. -- Electrode for Telephone-Transmitters
  21. -- System of Railway Signaling
  22. -- Railway-Telegraphy
  23. -- Electric Lamp
  24. -- Incandescent Electric Lamp
  25. -- Incandescent Electric Lamp
  26. -- Manufacture of Carbon Conductors
  27. -- Incandescent Electric Lamp
  28. -- Incandescing Electric Lamp
  29. -- Valve-Gear
  30. -- Filament for Incandescent Electric Lamps
  31. -- System of Electrical Distribution
  32. -- System of Electrical Distribution
  33. -- System of Electrical Distribution
  34. -- System of Electrical Distribution
  35. -- System of Electrical Distribution
  36. -- System of Electrical Distribution
  37. -- Electric Meter
  38. -- Manufacture of Filaments for Incandescing Electric Lights
  39. -- Electrical Transmission of Power
  40. -- Electrical Transmission of Power
  41. -- Electrical Transmission of Power
  42. -- Electrical Transmission of Power
  43. -- Electrical Transmission of Power
  44. -- Electrical Transmission of Power
  45. -- Electrical Transmission of Power
  46. -- Telegraphy
  47. -- Dynamo-Electric Machine : Includes an extra coil and ultilizes a field of force.
  48. -- Telegraphy
  49. -- Magnetic Separator
  50. -- Telephone-Transmitter
  51. -- Incandescent Electric Lamp
  52. -- Regulator for Dynamo-Electric Machines
  53. -- System of Electrical Distribution
  54. -- Commutator for Dynamo-Electric Machines
  55. -- Pyromagnetic Motor
  56. -- System of Electrical Distribution
  57. -- System of Electrical Distribution
  58. -- Burnishing Attachment for Phonographs
  59. -- System of Electrical Distribution
  60. -- Feed and Return Mechanism for Phonographs
  61. -- Process of Making Phonogram-Blanks
  62. -- Phonogram-Blank
  63. -- Process of Duplicating Phonograms
  64. -- Phonogram-Blank
  65. -- Railway Signaling
  66. -- System of Electrical Distribution
  67. -- Phonograph
  68. -- Incandescing Electric Lamp
  69. -- Process of Making Carbon Filaments
  70. -- System of Electric Lighting
  71. -- Incandescent Electric Lamp
  72. -- Process of Making Phonogram-Blanks
  73. -- Machine for Making Phonogram-Blanks
  74. -- Machine for Making Phonogram-Blanks
  75. -- Method of Preparing Phonograph Recording-Surfaces
  76. -- Phonograph-Recorder
  77. -- Method of Recording and Reproducing Sounds
  78. -- Method of Recording and Reproducing Sounds
  79. -- Phonograph-Recorder
  80. -- Phonograph-Recorder
  81. -- Phonograph-Reproducer
  82. -- Circuit-Controller for Dynamo-Electric Machines
  83. -- Method of Manufacturing Electric Lamps
  84. -- Incandescent-Lamp Filament
  85. -- Magnetic Separator
  86. -- Phonograph Recorder and Reproducer
  87. -- Method of Winding Field-Magnets
  88. -- Phonograph
  89. -- Incandescent Electric Lamp
  90. -- Ore-Separator
  91. -- Phonograph Recorder and Reproducer
  92. -- Phonograph
  93. -- Phonogram-Blank
  94. -- Method of Making Phonogram-Blanks
  95. -- Method of Making Phonogram-Blanks
  96. -- System of Electric Lighting
  97. -- Incandescing Electric Lamp
  98. -- Electrical-Distribution System
  99. -- Manufacture of Incandescent Electric Lamps
  100. -- Telephone

501 to 600

This series of patents mainly focus on the phonograph, telegraphy, telephone, and electrical generation and distribution.

  1. -- Phonograph (1889)
  2. -- Phonogram-Blank
  3. -- Phonograph
  4. -- Process of Treating Phonogram-Blanks
  5. -- Automatic Determining Device for Phonographs
  6. -- Automatic Determining Device for Phonographs
  7. -- Automatic Determining Device for Phonographs
  8. -- Automatic Determining Device for Phonographs
  9. -- Phonogram-Blank
  10. -- Electric Meter
  11. -- Electric Meter
  12. -- Manufacture of Carbon Filaments
  13. -- Carbonizing-Flask
  14. -- Manufacture of Incandescent Electric Lamps
  15. -- Manufacture of Incandescent Electric Lamps
  16. -- Manufacture of Carbon Filaments
  17. -- Phonogram-Blank
  18. -- Phonograph
  19. -- Phonogram-Blank
  20. -- Quadruplex Telegraph
  21. -- Telegraphy
  22. -- Telegraphy
  23. -- Telegraphy
  24. -- Apparatus for Speaking-Telephones
  25. -- Telephonic Repeater
  26. -- Telephonic Repeater
  27. -- Phonograph for Dolls or other Toys
  28. -- Measurement of Electricity in Distribution Systems
  29. -- Incandescent Lamp
  30. -- Cut-Out for Incandescent Electric Lamps
  31. -- Commutator for Dynamo-Electric Machines
  32. -- Automatic Determining Device for Phonographs
  33. -- Phonogram-Blank
  34. -- Magnetic Separator
  35. -- Phonograph
  36. -- Automatic Determining Device for Phonographs
  37. -- Phonograph
  38. -- Voltaic Battery
  39. -- Magnetic Separator
  40. -- Phonogram-Blank
  41. -- Manufacture of Incandescent Lamps
  42. -- Filament for Incandescent Lamps
  43. -- Electric-Lighting System
  44. -- Dynamo or Magneto-Electric Machine
  45. -- Telegraph-Relay
  46. -- Electric Generator
  47. -- Thermo-Electric Battery
  48. -- Magnetic Ore-Separator
  49. -- Propelling Mechanism for Electric Vehicles
  50. -- Means for Charging and Using Secondary Batteries
  51. -- Process of and Apparatus for Generating Electricity
  52. -- Telegraphy
  53. -- Method of Making Armatures for Dynamo-Electric Machines
  54. -- Electric Motor
  55. -- Method of and Apparatus for Drawing Wire
  56. -- Method of and Apparatus for Drawing Wire
  57. -- Apparatus for Transmitting Power
  58. -- Telegraphy
  59. -- Phonograph
  60. -- Phonograph
  61. -- Phonograph-Recorder
  62. -- Phonograph
  63. -- Method of Making Phonogram-Blanks
  64. -- Propelling Device for Electric Cars
  65. -- Phonogram-Blank
  66. -- Manufacture of Incandescent Electric Lamps
  67. -- Manufacture of Carbon Filaments
  68. -- Gage for Testing Fibers for Incandescent-Lamp Carbons
  69. -- System of Electric Lighting
  70. -- Commutator for Dynamo-Electric Machines
  71. -- Arc Lamp
  72. -- Electric Signaling Apparatus
  73. -- Fuse-Block
  74. -- Telephone
  75. -- Manufacture of Incandescent Electric Lamps
  76. -- System of Electrical Distribution
  77. -- Method of Insulating Electrical Conductors
  78. -- Lamp-Base
  79. -- Electric-Lighting System
  80. -- System of Electric Lighting
  81. -- Junction-Box for Electric Wires
  82. -- Electric-Lighting System
  83. -- Carbonizing-Chamber
  84. -- Phonograph
  85. -- Leading-In Wire for Incandescent Lamps
  86. -- System of Electric Lighting
  87. -- Locomotive for Electric Railways
  88. -- Electric-Arc Light
  89. -- Manufacture of Filaments for Incandescent Electric Lamps
  90. -- Electric Railway
  91. -- Telegraph
  92. -- Device for Turning Off Phonogram-Blanks
  93. -- Turning-Off Device for Phonographs
  94. -- Phonograph-Recorder
  95. -- Sextuplex Telegraph
  96. -- Sextuplex Telegraph
  97. -- Phonograph
  98. -- Incandescent-Lamp Filament
  99. -- Incandescent Electric Lamp
  100. -- Phonograph Recorder or Reproducer

601 to 700

This series of patents contain patents for the phonograph, lamps, telephone, dynamo systems, motors, and locomotives.

  1. -- Phonograph (1891)
  2. -- Phonograph-Doll
  3. -- Phonograph
  4. -- Magnetic Belting
  5. -- Smoothing-Tool for Phonogram-Blanks
  6. -- Manufacture of Incandescent Electric Lamps
  7. -- Process of and Apparatus for Generating Electricity
  8. -- Phonogram-Blank Carrier
  9. -- Incandescent Electric Lamp
  10. -- System of Distributing Electricity
  11. -- Process of Extracting Copper Pyrites
  12. -- Method of Bricking Fine Ores
  13. -- Armature Connection for Motors or Generators
  14. -- Means for Transmitting Signals Electrically
  15. -- Phonograph
  16. -- Armature for Dynamos or Motors
  17. -- Cut-Out for Incandescent Lamps
  18. -- Art of Electrolytic Decomposition
  19. -- Converter System for Electric Railways
  20. -- Commutator-Brush for Electric Motors and Dynamos
  21. -- Manufacture of Filaments for Incandescent Lamps
  22. -- Railway-Signaling
  23. -- Electric Conductor
  24. -- Manufacture of Filaments for Incandescent Lamps
  25. -- Dynamo-Electric Machine or Motor
  26. -- Driving Mechanism for Cars
  27. -- Alternating-Current Generator
  28. -- Magnetic Separator
  29. -- Dynamo-Electric Machine
  30. -- Ore-Conveyer and Method of Arranging Ore Thereon
  31. -- Dust-Proof Bearing for Shafts
  32. -- Dust-Proof Journal-Bearing
  33. -- Ore-Screening Apparatus
  34. -- Speaking-Telegraph
  35. -- Speaking-Telegraph
  36. -- Speaking-Telegraph
  37. -- Process of Extracting Gold from Sulphide Ores
  38. -- Ore-Conveying Apparatus
  39. -- Dust-Proof Swivel Shaft-Bearing
  40. -- Electric Locomotive
  41. -- Electric Locomotive
  42. -- Electric Locomotive
  43. -- Electric Railway
  44. -- System of Electric Lighting
  45. -- Incandescent Electric Lamp
  46. -- System of Electrical Distribution
  47. -- Incandescent Electric Lamp
  48. -- Electric-Lighting System
  49. -- Ore-Screening Apparatus
  50. -- Pyromagnetic Generator
  51. -- Expansible Pulley
  52. -- Trolley for Electric Railways
  53. -- Means for Propelling Electric Cars
  54. -- Electric Locomotive
  55. -- Lightning-Arrester
  56. -- Conductor for Electric Railways
  57. -- Electric Meter
  58. -- Method of and Apparatus for Separating Ores
  59. -- Incandescent Electric Lamp
  60. -- Electric-Arc Lamp
  61. -- Telephone-Repeater
  62. -- Fac-simile Telegraph
  63. -- Duplex Telegraph
  64. -- Means for Controlling Electric Generation
  65. -- Electrical Depositing-Meter
  66. -- Manufacture of Carbon Filaments
  67. -- Manufacture of Carbon Filaments
  68. -- Duplicating Phonograms
  69. -- Phonograph Cutting-Tool
  70. -- Phonograph-Reproducer
  71. -- Phonograph
  72. -- Manufacture of Carbon Filaments
  73. -- Manufacture of Carbon Filaments
  74. -- Incandescent-Lamp Filament
  75. -- Method of Bricking Fine Iron Ores
  76. -- Method of Magnetically Separating Ores
  77. -- Method of Magnetic-Ore Separation
  78. -- System of Railway Signaling
  79. -- Phonograph
  80. -- Phonograph-Reproducer
  81. -- Phonogram-Blank
  82. -- Art of Generating Electricity
  83. -- Manufacture of Carbon Filaments for Electric Lamps
  84. -- Cut-Out for Incandescent Electric Lamps
  85. -- Stop Device
  86. -- Process of Coating Conductors for Incandescent Lamps
  87. -- Speaking-Telegraph
  88. -- Electric Locomotive
  89. -- Apparatus for Exhibiting Photographs of Moving Objects
  90. -- Transmission of Power
  91. -- Phonograph
  92. -- Roller for Crushing Ore or Other Material
  93. -- Phonograph
  94. -- Phonograph
  95. -- Phonograph
  96. -- Phonograph
  97. -- Method of Making Plate Glass
  98. -- Apparatus for Making Glass
  99. -- Composition Brick and Method of Making Same
  100. -- System of Electrical Distribution

701 to 800

Around these patents issuances, Thomas Armat joined Edison and sold him the patents to the machine known as the Vitascope.

  1. -- Electric Railway (1893)
  2. -- Sextuplex Telegraph
  3. -- Method of and Apparatus for Mixing Materials
  4. -- Phonograph
  5. -- Phonograph
  6. -- Regulator for Dynamo-Electric Machines
  7. -- System of Electrical Distribution
  8. -- Manufacture of Carbon Filaments
  9. -- Manufacture of Carbons for Electric Lamps
  10. -- Art of Plating One Material with Another
  11. -- Filament for Incandescent Lamps
  12. -- Manufacture of Carbon Filaments
  13. -- Induction-Converter
  14. -- Incandescent Electric Lamp
  15. -- Phonograph
  16. -- Phonograph
  17. -- Incandescent Conductor for Electric Lamps
  18. -- Process of Treating and Products Derived from Vegetable Fibers
  19. -- Filament for Incandescent Lamps
  20. -- System of Electrical Distribution
  21. -- Method of and Apparatus for Drawing Wire
  22. -- Process of Separating Ores
  23. -- Crushing-Roll
  24. -- Phonograph
  25. -- Kinetographic Camera
  26. -- Conveyer
  27. -- Governor for Motors
  28. -- Drying Apparatus
  29. -- Phonograph
  30. -- Mixer
  31. -- Phonograph
  32. -- Phonograph
  33. -- Phonograph
  34. -- Phonograph
  35. -- Filament for Incandescent Lamps and Process of Manufacturing Same
  36. -- Rolls
  37. -- Expanding Pulley
  38. -- Method of Reheating Compressed Air for Industrial Purposes
  39. -- Drier
  40. -- Process of Screening or Sizing Very Fine Materials
  41. -- Apparatus for Duplicating Phonograph-Records
  42. -- Phonograph
  43. -- Phonographic Reproducing Device
  44. -- Process of Making Metallic Duplicate Phonograph-Records
  45. -- Apparatus for Reheating Compressed Air for Industrial Purposes
  46. -- Electric Meter
  47. -- Electric Meter
  48. -- Apparatus for Sampling, Averaging, Mixing, and Storing Materials in Bulk
  49. -- Machine for Forming Pulverized Material into Briquets
  50. -- Process of Sampling, Averaging, Mixing, and Storing Materials in Bulk
  51. -- Electric Meter
  52. -- Flight Conveyer
  53. -- Apparatus for Duplicating Phonograph-Records
  54. -- Process of Duplicating Phonograph-Records
  55. -- Lubricating Journal-Bearings
  56. -- Conveyer
  57. -- Apparatus for Screening or Rescreening Fine Materials
  58. -- Method of Screening or Rescreening Fine Materials
  59. -- Method of Breaking Rock
  60. -- Apparatus for Breaking Rock
  61. -- Grinding or Crushing Rolls
  62. -- Magnetic Separator
  63. -- Apparatus for Screening Pulverized Material
  64. -- Phonographic Recording Apparatus
  65. -- Magnetic Separator
  66. -- Magnetic Separating Apparatus
  67. -- Magnetic Separating Apparatus
  68. -- Reversible Galvanic Battery
  69. -- Apparatus for Screening or Sizing Very Fine Materials
  70. -- Process of Making Duplicate Phonograph-Records
  71. -- Reversible Galvanic Battery
  72. -- Reversible Galvanic Battery
  73. -- Apparatus for Reheating Compressed Air for Industrial Purposes
  74. -- Phonograph Recording Apparatus
  75. -- Reversible Galvanic Battery
  76. -- Reversible Galvanic Battery
  77. -- Reversible Galvanic Battery
  78. -- Reversible Galvanic Battery
  79. -- Electric Meter
  80. -- Apparatus for Bricking Pulverized Material
  81. -- Reproducer for Phonographs
  82. -- Apparatus for Concentrating Magnetic Iron Ores
  83. -- Reversible Galvanic Battery
  84. -- Reversible Galvanic Battery
  85. -- Electrode for Batteries
  86. -- Reversible Galvanic Battery
  87. -- Reproducer for Sound-Records
  88. -- Process of Duplicating Phonograms
  89. -- Process of Coating Phonograph-Records
  90. -- Reversible Galvanic Battery
  91. -- Funnel for Filling Storage-Battery Cans or Analogous Purposes
  92. -- Means for Handling Cable-Drawn Cars on Inclines
  93. -- Electrode for Storage Batteries
  94. -- Reversible Galvanic Battery
  95. -- Means for Operating Motors in Dust-Laden Atmospheres
  96. -- Grinding-Rolls
  97. -- Reversible Galvanic Battery
  98. -- Process of Manufacturing Electrolytically-Active Finely-Divided Iron
  99. -- Process of Nickel-Plating
  100. -- Electrical Automobile

801 to 900

Alvin Caskey was working under the direction of Edison during these patents. Toward the end of this series of patents, Ott was the superintendent of experimenters for Edison.

  1. -- Compressing-Dies (1904)
  2. -- Process of Separating Ores from Magnetic Gangue
  3. -- Storage-Battery Tray
  4. -- Reversible Galvanic Battery
  5. -- Stock-House Conveyer
  6. -- Method of Burning Portland-Cement Clinker, &c.
  7. -- Apparatus for Burning Portland-Cement Clinker &c.
  8. -- Magnetic Separating Apparatus
  9. -- Method of Separating Mechanically-Entrained Globules from Gases
  10. -- Primary Battery
  11. -- Apparatus for Vacuously Depositing Metals
  12. -- Method of Rendering Storage-Battery Gases Non-Explosive
  13. -- Photographic Film for Moving-Picture Machines
  14. -- Vehicle-Wheel
  15. -- Rotary Cement-Kiln
  16. -- Dry Separator
  17. -- Gas-Separator for Storage Batteries
  18. -- Process of Duplicating Phonographic Records
  19. -- Lamp-Guard
  20. -- Sheet Metal for Perforated Pockets of Storage Batteries
  21. -- Phonograph-Record and Method of Making the Same
  22. -- Apparatus for Burning Portland-Cement Clinker
  23. -- Apparatus for Perforating Sheet Metal
  24. -- Cement-Kiln
  25. -- Pocket-Filling Machine
  26. -- Process of Treating Alkaline
  27. -- Storage Battery
  28. -- Process of Cleaning Metallic Surfaces
  29. -- Storage-Battery-Filling Apparatus
  30. -- Gas-Separator for Storage Batteries
  31. -- Process of Treating Alkaline Storage Batteries
  32. -- Process of Making Metallic Films or Flakes
  33. -- Process of Making Metallic Flakes or Scales
  34. -- Process for Making Conducting-Films
  35. -- Calcining-Furnace
  36. -- Alkaline Battery
  37. -- Process of Making Composite Metals
  38. -- Storage-Battery Electrode-Plate
  39. -- Sound-Recording Apparatus
  40. -- Automatic Weighing and Mixing Apparatus
  41. -- Method of Coating Active Material with Flake-Like Conducting Material
  42. -- Phonograph Record or Blank
  43. -- Apparatus for Grinding and Separating Fine Materials
  44. -- Electrical Welding Apparatus
  45. -- Composite Metal
  46. -- Process of Making Articles by Electroplating
  47. -- Secondary Battery
  48. -- Secondary Battery
  49. -- Process of Making Storage-Battery Electrodes
  50. -- Diaphragm for Talking-Machines
  51. -- Can or Receptacle for Storage Batteries
  52. -- Storage-Battery Electrode
  53. -- Primary and Secondary Battery
  54. -- Storage-Battery Electrode
  55. -- Portland Cement and Process of Manufacturing the Same
  56. -- Can or Receptacle for Storage Batteries
  57. -- Discharging Apparatus for Belt Conveyers
  58. -- Process of Making Seamless Tubular Pockets or Receptacles for Storage Battery Electrodes
  59. -- Fluorescent Electric Lamp
  60. -- Process of Making Nickel Films
  61. -- Process of Making Metallic Films or Flakes
  62. -- Apparatus for Producing Perforated Strips
  63. -- Reversible Galvanic Battery
  64. -- Feed-Regulator for Grinding-Machines
  65. -- Reversible Galvanic Battery
  66. -- Electrolyte for Alkaline Storage Batteries
  67. -- Alkaline Storage Battery
  68. -- Apparatus for Producing Very Thin Sheet Metal
  69. -- Process of Producing Very Thin Sheet Metal
  70. -- Electrode Element for Storage Batteries
  71. -- Method of Making Storage-Battery Electrodes
  72. -- Storage-Battery Electrode
  73. -- Apparatus for Grinding Coal
  74. -- Metallic Film for Use with Storage-Battery Electrodes and Process of Preparing the Same
  75. -- Storage Battery
  76. -- Process of Making Articles by Electroplating
  77. -- Filling Apparatus for Storage-Battery Jars & c.
  78. -- Waterproofing-Paint for Portland-Cement Buildings
  79. -- Waterproofing Fibers and Fabrics
  80. -- Waterproofing-Paint for Portland-Cement Structures
  81. -- Telegraphy
  82. -- Storage Battery
  83. -- Process of Making Storage-Battery Electrodes
  84. -- Process for Making Thin Metallic Flakes
  85. -- Shaft-Coupling
  86. -- Apparatus for Burning Portland Cement
  87. -- Gas-Purifier
  88. -- Apparatus for Burning Portland Cement
  89. -- Apparatus for Burning Portland Cement
  90. -- Feed Mechanism for Phonographs and Other Machines
  91. -- Tube-Filling and Tamping Machine
  92. -- Process of Making Metallic Films or Flakes
  93. -- Cement-Kiln
  94. -- Phonographic Recording and Reproducing Machine
  95. -- Electrode Element for Storage Batteries
  96. -- Process and Apparatus for Artificially Aging or Seasoning Portland Cement
  97. -- Horn for Talking-Machines
  98. -- Sound-Recording Apparatus
  99. -- Process and Apparatus for Artificially Aging or Seasoning Portland Cement
  100. -- Storage Battery

901 to 1000

Miller Reese Hutchison, an inventor and businessman, worked with Edison between 1910 and 1918. He was a supporter and advocate of the Edison storage battery.

  1. -- Automobile (1910)
  2. -- Method of Treating Cans of Alkaline Storage Batteries
  3. -- Storage-Battery Electrode
  4. -- Phonographic Recording Apparatus
  5. -- Apparatus for Making Metallic Films or Flakes
  6. -- Sprocket-Chain Drive
  7. -- Tube-Sealing Machine
  8. -- Apparatus for Recording Sounds
  9. -- Crushing-Roll
  10. -- Crushing-Rolls
  11. -- Apparatus for Recording or Reproducing Sounds
  12. -- Process of Electroplating
  13. -- Device for Viewing Moving Pictures
  14. -- Sound-Record
  15. -- Tube-Forming Machine
  16. -- Method and Apparatus for Making Sound-Records
  17. -- Flying-Machine
  18. -- Process of Duplicating Talking-Machine Records
  19. -- Phonograph-Reproducer
  20. -- Storage-Battery Electrode
  21. -- Storage Battery
  22. -- Bucket Conveyer
  23. -- Device for Feeding Pulverulent Material
  24. -- Rotary Kiln
  25. -- Phonograph-Reproducer
  26. -- Storage Battery and Process of Treating the Same
  27. -- Crushing and Separating Fine Materials
  28. -- Composition for Sound-Records and Other Objects
  29. -- Recording-Telephone
  30. -- Storage Battery
  31. -- Bearing
  32. -- Giant Rolls
  33. -- Means and Method for Preventing Depletion of Electrolyte
  34. -- Electroplating Apparatus
  35. -- Phonograph-Reproducer
  36. -- Sound-Recording Apparatus
  37. -- Phonograph-Reproducer
  38. -- Phonographic Recording-Stylus
  39. -- Storage Battery
  40. -- Battery-Cell Container
  41. -- Phonographic Apparatus
  42. -- Storage Battery
  43. -- Conveyer
  44. -- Phonograph-Stylus
  45. -- Phonograph-Reproducer
  46. -- Phonograph Determining Device
  47. -- Phonograph
  48. -- Apparatus for Producing Rubber Strips
  49. -- Art of Separating Copper from Other Metals
  50. -- Art of Separating Copper from Other Metals
  51. -- Phonograph-Reproducer
  52. -- Dumping Mechanism
  53. -- The Reproducer
  54. -- Means for Reproducing Sound
  55. -- Manufacture of Portland Cement
  56. -- Cement-Burning Kiln
  57. -- Storage Battery
  58. -- Phonographic Recording or Reproducing Apparatus
  59. -- Process of Making Phonograph-Records
  60. -- Sound-Box
  61. -- Production of Perforated Strips
  62. -- Insulating Compound
  63. -- Art of Forming Chemical Compounds
  64. -- Storage Battery
  65. -- Rectifier
  66. -- Phonograph-Reproducer
  67. -- Phonograph-Reproducer
  68. -- Phonograph-Reproducer
  69. -- Method of Making Sound-Record Molds
  70. -- Fuel-Feeding Apparatus
  71. -- Sound-Modifier
  72. -- Process of Forming Phonograph-Styli
  73. -- Phonograph-Record
  74. -- Electrode Element
  75. -- Method of Making Molds for Sound-Records
  76. -- Sound-Reproducer
  77. -- Sound-Record
  78. -- Mold for Concrete Construction
  79. -- Sound-Recording Apparatus
  80. -- Machine for Shaving Sound Records or Blanks
  81. -- Method of Presenting the Illusion of Scenes in Colors
  82. -- Sound-Recording Apparatus
  83. -- Charging Storage Batteries
  84. -- Method of Producing Tablets for Sound-Records
  85. -- Method of Making Phonograph-Records
  86. -- Means for Utilizing the Waste Heat in Kilns
  87. -- Method of Burning Portland-Cement Clinker
  88. -- Phonographic Recording Apparatus
  89. -- Alternating-Current-Rectifying System
  90. -- Contact for Electrical Apparatus
  91. -- Phonograph-Record
  92. -- Phonograph-Record
  93. -- Phonograph or Talking-Machine
  94. -- Filament for Incandescent Electric Lamps
  95. -- Production of Nickel Hydroxid
  96. -- Storage Battery
  97. -- Method of Utilizing Waste Heat in Kilns
  98. -- Means for Concentrating Ores
  99. -- Moving-Picture Apparatus
  100. -- Receptacle-Filling Machine

1001 to 1084

This series of patents focus mainly on the phonograph and other talking-machines. There are several battery patents included in this portion of legal protections.

  1. -- Apparatus for Recording and Reproducing Motion and Sounds (1916)
  2. -- Phonograph or Talking-Machine
  3. -- Phonograph or Talking-Machine
  4. -- Phonograph or Talking-Machine
  5. -- Means for Recording Sounds
  6. -- Electrical System for Automobiles
  7. -- Coating Apparatus
  8. -- Production of Electrode Elements
  9. -- Coating Apparatus
  10. -- Sound-Modifying Device
  11. -- Sound-Box
  12. -- Primary Battery
  13. -- Sound-Record Tablet
  14. -- Process of Constructing Concrete Buildings
  15. -- Alternating-Current Rectifier
  16. -- Celluloid Record-Blank
  17. -- Mold or Transfer Plate
  18. -- Celluloid Record-Blank
  19. -- Starting and Current-Supplying System for Automobiles
  20. -- Process of Making Screens for Projection
  21. -- Electric Safety-Lantern
  22. -- Storage Battery
  23. -- Production of Finely-Divided Metals
  24. -- Para-phenylene-di-amin Substance and Process Relating Thereto
  25. -- Means for Recording Sounds
  26. -- Friction Speed-Governor
  27. -- Swaging-Machine
  28. -- Projectile
  29. -- Storage Battery
  30. -- Projectile
  31. -- Projectile
  32. -- Tube Filling and Tamping Machine
  33. -- Method and Means for Improving the Rendition of Musical Compositions
  34. -- Mold for Sound-Records
  35. -- Apparatus for the Production of Concrete Structures
  36. -- Composition of Matter for Sound-Records or the Like and Process of Making the Same
  37. -- Electroplating
  38. -- Battery-Tray
  39. -- Protecting-Varnish for Electrodes of Electrolytic Cells
  40. -- Cleaning of Metallic Surfaces
  41. -- Process of Molding
  42. -- Nickel-Plating
  43. -- Production of Molded Articles
  44. -- Production of Molded Articles
  45. -- Storage Battery
  46. -- Storage Battery
  47. -- Production of Thin Metallic Sheets or Foils
  48. -- Electrode Element for Galvanic Batteries and Method of Producing ame
  49. -- Storage-Battery Electrode and the Production of Same
  50. -- Protective Coating for Steel and Iron
  51. -- Production of Molded Articles
  52. -- Mold
  53. -- Production of Thin Metal Sheets or Foils
  54. -- Transmitter
  55. -- Production of Thin Metal Sheets or Foils
  56. -- Stylus Mounting
  57. -- Stylus Mounting
  58. -- Regeneration of Alkaline Storage-Battery Elements
  59. -- Regeneration of Storage-Battery Elements
  60. -- Voltaic Battery and the Production of Electrode Elements Therefor
  61. -- Sound Record
  62. -- Method of Producing Chlorinated Rubber
  63. -- Storage Battery
  64. -- Production of Disk Phonograph Records
  65. -- Storage Battery
  66. -- Centrifugal Speed Governor
  67. -- Production of Depolarizing Agent for Voltaic Battery
  68. -- Mounting for Diamonds and the Like
  69. -- Cabinet
  70. -- Storage-Battery Electrode Element and Production Thereof
  71. -- Storage Battery
  72. -- Production of Alkali-Metal Compounds from Silicates Containing Them
  73. -- Method of Producing Sound-Record Tablets
  74. -- Receiving Apparatus for Radio and Telephone Circuits
  75. -- Phonograph
  76. -- Phonograph Reproducer
  77. -- Apparatus for Producing Storage-Battery Electrode Elements
  78. -- Extraction of Rubber from Plants
  79. -- Mounting for Diaphragms of Sound Boxes
  80. -- Production of Molded Articles
  81. -- Dynamo-Electric Machine
  82. -- Electroplating Apparatus
  83. -- Production of Molded Articles
  84. -- Holder for Article to be Electroplated

Design patents

Edison obtained a few design patents for the unique appearance and concept of items, giving Edison an industrial design right. His design patents are for phonograph cabinets and light bulbs with substantial decorative features.

  1. -- Design for an Incandescent Electric Lamp
  2. -- Design for Incandescing Electric Lamp
  3. -- Design for a Phonograph-Cabinet
  4. -- Design for a Cabinet
  5. -- Design for a Grille for Phonograph Cabinets
  6. -- Design for a Grille for Phonograph Cabinets
  7. -- Design for a Phonograph Cabinet
  8. -- Design for a Phonograph Cabinet
  9. -- Design for a Phonograph Cabinet

Improvements

  • Lewis Latimer patented an improved method of producing the filament in light bulbs (there is no evidence that this was ever used by an Edison company)
  • Nikola Tesla developed alternating current distribution, which could be used to transmit electricity over longer distance than Edison's direct current due to the ability to transform the voltage. It could be said that alternating current was not derivative of Edison's work, but it was related as were the two men. Tesla was a former employee of Edison, and left to follow his path with alternating current - which Edison did not support.
  • Emile Berliner developed the gramophone, which is essentially an improved phonograph, with the main difference being the use of flat records with spiral grooves.
  • Edward H. Johnson had light bulbs specially made, hand-wired, and displayed at his home on Fifth Avenue in New York City on the first electrically-illuminated Christmas tree on December 22 1882.

See also

Related links and patent resources

Patent offices

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