List of electrostatic generator patents

An electrostatic generator is a mechanical device that produces continuous electrical current. The knowledge of static electricity dates back to the earliest dawn of civilization but for ages it remained merely an interesting and mystifying phenomenon. Development of electrostatic machines did not begin in earnest till the 18th Century. These devices can produce a high electrical voltage at relatively low electrical currents. Electrostatic generator are of two kinds: (A) Frictional machines, and (B) Influence machines. Below is a list of electrostatic generator patents.

Issue Date Year-Month-Day	Issue Country	Patent No.	Inventor(s)	Title	Notes & Title Translation	Patent Link
1859-12-13	US	26445	Seely, Charles A	Electric Apparatus
1861-05-21	US	32353	Cornelius, Robert	Electric Apparatus
1868-02-04	US	74139	Ritchie, Edward S	Holtz Electrical Machine
1869-08-10	US	93563	Smith, H Julius	Electric Battery	Portable and airtight device that was designed to ignite powder
1882-07-11	US	261118	Benjamin, Edmund B	Statical Electrical Apparatus
1882-10-24	US	266467	Guerin, Emile	Electrical Machine
1883-04-10	US	275347	Atkinson, Philip	Frictional Electrical Machine	Known as a "Voss machine"
1885-12-08	US	331754	Atkinson, Philip	Frictional Electrical Generator
1889-02-19	US	398122	Birdsall, Edward T	Static Induction Generator
1889-04-09	US	401156	Gläser, Hermann	Static Induction Machine
1889-08-27	US	410053	Voss, Robert	Influence Machine
1892-08-02	US	479941	Henry, William	Influence Generator of Electricity
1893-05-09	US	497226	Waite, Henry E	Influence Machine
1894-02-13	US	514524	Waite, Harry Fuller	Influence Machine
1896-05-26	US	560852	Hollopeter, Charles M	Static Electrical Machine	Drawings include an electrostatic machine cabinet.
1897-01-12	US	575231	Gawne, Augustus James	Static Generator
1897-06-08	US	583957	Thomson, Elihu	Electrostatic Influence Machine
1897-09-07	US	589742	Myers, Cornelius H; Rose, Henry C	Static Machine
1898-01-11	US	597137	Bogart, Adrian Livingston	Static Induction Electric Generator
1899-02-28	US	620473	Martin, George F	Electrical Machine
1899-03-19	GB	189815100	Pidgeon, Winter Randell	Electrical Influence Machines
1899-04-04	US	622210	Dodd, West; Struthers, Alvin D	Apparatus for Illustrating the Phenomena of Thunder and Lightning
1899-09-26	US	633829	Gallegos, José	Static Electric Machine
1899-10-10	US	634467	Lemström, Karl Selim	Electrical Influence Machine
1900-04-03	US	646418	Dodd, West; Struthers, Alvin D	Machine for Generating and Utilizing Static Electricity
1900-05-22	US	650141	Wagner, Rome V	Static Induction Generator
1900-07-21	GB	189922517	Pidgeon, Winter Randell	Electrical Influence Machines
1901-01-26	US	667144	Cook, Charles H	Static Electric Machine
1901-01-29	US	666940	Sorensen, Jens	Static Electric Machine
1901-02-26	US	669052	Werber, Gustavus	Attachment for Static Electrical Machines
1901-04-16	US	672048	Waite, Henry E	Static Machine
1901-05-28	US	674890	Waite, Henry E; Waite, Harry F	Static Machine
1901-09-03	US	681763	Wagner, Rome V	Art of Developing Static Electricity
1901-09-10	US	682203	Kindraide, Thomas B	Static Machine
1901-11-28	US	687455	Frandsen, Lawrence; Holzhauer, Lewis	Static Electric Generator
1902-02-04	US	692737	Todd, Henry B	Static Electric Machine
1902-05-20	US	700536	Moore, George J; Moore, David C	Apparatus for Demonstrating the Phenomena of Electrical Storms	No known relation to A.D. Moore, who developed the Dirod machine in the 1960s
1903-02-17	US	720711	Lemström, Selim	Electrical Influence Machine
1903-07-21	US	734450	Waite, Henry E; Waite, Harry F	Static Machine
1903-11-02	DE	145440	Wommelsdorf, Heinrich	Kondensatormaschine	Condenser machine
1903-11-24	US	744707	Archer, Thomas	Static Electrical Machine
1904-03-22	US	755367	Fewkes, Ernest E	Static Electric Machine
1904-03-29	US	756045	Nelson, Nels O	Shunt Controller for Electric Machines
1904-05-09	US	789379	Patee, Theodorus H	Static Electric Machine
1904-08-17	DE	154175	Wehrsen, Alfred, et al	Scheibe für Influenzmaschinen	Disk For Influence Machines; Related to DE154176
1904-09-06	US	769433	Detwiller, Isaac W	Influence Machine
1904-09-13	US	770133	Waite, Henry E; Waite, Harry F	Plate for Static Machines
1904-12-06	US	776997	Burboa, Juan G Holguin	Static Electric Machine
1904-12-20	US	777833	Birtman, Charles F	Static Influence Machine
1905-01-25	AT	18918B	Wommelsdorf, Heinrich	Kondensatormaschine
1905-02-28	US	783666	Baker, Burton E	Revolving Plate for Static Machines
1905-04-18	US	787561	Caldwell, Eugene W	Electrostatic Apparatus
1905-05-30	US	791310	Baker, Burton E	Stationary Plate for Static Machines
1905-06-14	DE	161211	Wommelsdorf, Heinrich	Querkonductor für Influenzmaschinen	Crosswise conductor for electrostatic generators
1905-06-20	US	792751	Blake, Lucien I	Electrostatic Apparatus
1906-01-03	US	779190	Thomson, Elihu	Static Influence Electrical Machine
1906-01-09	US	809761	Thomson, Elihu	Static Influence Machine
1906-05-29	US	821902	Todd, Henry B	Static Induction Generator
1906-07-31	US	827497	Baysdorfer, Otto	Static Electric Machine
1906-09-10	DE	176415	Wommelsdorf, Heinrich	Aus einzelnen isolierenden Platten mit zwischenliegenden Sektoren bestehende Scheibe für Kondensatormaschinen	From individual isolating plates with intermediate sectors existing disk for condenser machines
1906-10-08	DE	178052	Wommelsdorf, Heinrich	Kondensatormaschine	Condenser machine
1906-11-29	GB	190609086	Wommelsdorf, Heinrich	Improvements in and relating to Influence Electrical Machines
1907-12-10	US	873178	Shinn, William C	Static Electric Machine	Related to Shinn's Thunder Storm Machine
1908-03-17	US	882508	Wommelsdorf, Heinrich	Static Influence Electric Machine
1908-04-07	US	883846	Wommelsdorf, Heinrich	Electrical Multiple Influence or Condenser Machine
1908-10-20	US	901666	Wehrsen, Alfred	Disk for Influence or Static Induction and Condensor Machines	Identical to AT36027
1909-01-25	AT	36027B	Wehrsen, Alfred	Scheibe für Influenz- bezw. Kondensatormaschinen	Disk For Either Influence- Or Condenser-Machines
1909-03-09	US	914623	Williams, Henry H	Process in the Manufacture of Generating Plates for X-Ray Machines
1909-10-19	US	937691	Baker, Burton E	Static Induction Generator
1911-09-22	DE	238344	Wommelsdorf, Heinrich	Scheibe für Influenz- und Kondensatormaschinen	Related to DE271742; disk for influence and condenser machines
1911-10-24	US	1006786	Piggott, George S	Space Telegraphy
1911-11-01	DE	240325	Wommelsdorf, Heinrich	Scheibe für einseitig wirkende Influenzmaschinen	Disk for on one side working electrostatic generators
1911-12-19	US	1011939	Ghilarducci, Francesco	Electrostatic Machine
1912-03-02	DE	244155	Wommelsdorf, Heinrich	Influenzmaschine	Electrostatic generator
1912-10-29	US	1043030	Patee, Theodorus H	Static Electric Machine
1912-11-11	AT	56127B	Wommelsdorf, Heinrich	Scheibe für Influenz- und Kondensatormaschinen	Disk for influence and condenser machines
1913-08-26	US	1071196	Wommelsdorf, Heinrich	Influence Electric Machine
1914-02-03	US	1086010	Baker, Burton E	Influence Machine
1914-05-12	US	1096601	Charbonneau, Lionel C	Muffler for Electrostatic Machines
1916-10-24	US	1202672	Chapman, William H	Generator for Static Electricity
1918-11-05	US	1283492	Frost, Walter Shelverton	Electrostatic Machine
1920-06-09	DE	321622	Wommelsdorf, Heinrich	Kondensatormaschine	Condenser machine
1920-11-20	US	1360654	Littlefield, Edgar Earle	Apparatus for Electrically Charging Fluids
1922-04-11	US	1412726	Vogel, Louis	Influence Electrical Machine
1922-05-09	US	1415779	Bowen, William Spencer	Electrostatic Generator
1922-11-14	US	1435210	Chubb, Lewis W	High Voltage Producing Means
1923-03-09	DE	370980	Wommelsdorf, Heinrich	Elektrophor	Electrophorus
1923-05-23	DE	376196	Wommelsdorf, Heinrich	Elektrophor
1924-03-22	DE	392554	Wommelsdorf, Heinrich	Influenzmaschine, deren Beläge nicht nur von einen festen Isolierstoff umgeben sind, sondern auch noch in ein flüssiges Dielektricum tauchen	Influence machine, the coatings of which are not only enclosed by solid insulation, but also immersed in a fluid dielectric.
1925-10-23	DE	420402	Wommelsdorf, Heinrich	Elektrostatische Maschine, deren Induzierende Teile von einen Flüssigen Dielektricum umgeben sind	Electrostatic machine, the inducing parts of which are surrounded by a fluid dielectric.
1927-05-09	DE	443699	Wommelsdorf, Heinrich	Influenz- oder Kondensatormaschine	Influence- or Condenser-Machine
1929-07-25	DE	479991	Wommelsdorf, Heinrich	Stromabnehmer für Influenzmaschinen	Current collectors for electrostatic generators
1929-09-11	DE	482298	Wommelsdorf, Heinrich	Reibungselektrisierapparat	Friction electrification apparatus
1931-12-16	US	1991236	Van de Graaff, Robert J	Electrostatic Generator	This is the classical Van de Graaff machine widely used as a demonstration model.
1932-03-11	DE	546363	Wommelsdorf, Heinrich	Verfahren zum Betrieb von Influenzmaschinen mit mehr als zwei Polen	Method of Operation of Influence Machines With More Than Two Poles
1932-04-25	DE	549208	Wommelsdorf, Heinrich	Elektrischer Kondensator
1934-02-13	US	1947220	Nickle, Clifford A	Electrostatic Machine
1935-06-18	US	2005451	Browne, Ralph C	High Voltage Electrical Machine
1935-07-30	US	2009503	Landwerlin, Georges	Electrostatic Machine
1936-03-03	US	2032932	Hauffe, Fritz; Fröhmer, Claus	Electrostatic Device
1936-10-27	US	2058732	Simon, Alfred W	Terminal Voltage Regulation for Electrostatic Generators
1937-04-27	US	2078760	Hansell, Clarence W	High Voltage Generator
1939-12-05	US	2181946	Lindenblad, Nils E	High Voltage Generator
1940-03-26	US	2194839	Van de Graaff, Robert J; Trump, John G	Method of and Apparatus for Electrostatically Generating Direct Current Power
1940-03-26	US	2230473	Van de Graaff, Robert J	Method for Increasing the Compactness of High Voltage Electrostatic Apparatus
1940-08-06	US	2210492	Lindenblad, Nils E	High Voltage Generator
1943-01-19	US	2308884	Lindenblad, Nils E	High Voltage Generator
1949-10-25	US	2486140	Felici, Noël J	Electrostatic Generating and Driving Machine
1950-02-28	CH	266975	Felici, Noël J	Machine Électrostatique
1950-03-31	CH	267504	Felici, Noël J	Machine Électrostatique
1950-08-22	US	2519554	Felici, Noël J	Electrostatic Machine
1950-09-12	US	2522106	Felici, Noël J	Electrostatic Machine
1950-09-26	US	2523688	Felici, Noël J	Electrostatic Machine
1950-09-26	US	2523688	Felici, Noël J	Electrostatic Machine
1950-09-26	US	2523689	Felici, Noël J	Electrostatic Machine
1950-11-14	US	2530193	Felici, Noël J	Electrostatic Machine
1951-02-06	US	2540327	Felici, Noël J	Electrostatic Machine
1951-02-20	US	2542494	Felici, Noël J	Electrostatic Machine
1951-06-26	CA	474781	Felici, Noël J	Adjustable Voltage Dividers
1951-09-11	US	2567373	Giacoletto, Lawrence J; Wolff, Irving	Electrostatic Generator
1951-12-04	US	2577446	Bosch, Carl	Electrostatic Voltage Generator
1951-12-18	US	2578908	Turner, Clarence M	Electrostatic Generator
1952-02-12	US	RE023460	Felici, Noël J	Electrostatic Machine
1952-03-11	US	2588513	Giacoletto, Lawrence J	Electrostatic High-Voltage Generator
1952-03-25	US	2590168	Felici, Noël J	Explosion Engine Ignition
1952-05-06	CA	482985	Felici, Noël J	Electrostatic Machine
1952-06-10	CA	483898	Felici, Noël J	Electrostatic Machine
1952-06-10	CA	483899	Felici, Noël J	Electrostatic Machine
1952-07-01	CA	484472	Felici, Noël J	Electrostatic Generating and Driving Machines
1952-07-01	CA	484473	Felici, Noël J	Electrostatic Machines
1952-07-01	CA	484474	Felici, Noël J	Electrostatic Machines
1952-07-01	CA	484475	Felici, Noël J	Electrostatic Machine
1952-07-22	US	2604502	Felici, Noël J	Commutator
1952-07-29	CA	485264	Felici, Noël J	Electrostatic Machines
1952-09-11	FR	56027E	Felici, Noël J	Machines Électrostatiques de Grande Puissance, Faible Encombrement Et Bon Rendement
1952-09-16	US	2610994	Bosch, Carl; Shamos, Morris H	Electrostatic Voltage Multiplier	Contains many formulas for electrostatic multipliers, such as the current flowing through the segments, the equivalent resistance of an electrostatic device, time constants, and stage gains.
1952-09-23	FR	56352E	Felici, Noël J	Nouvelles Dispositions Des Organes Conducteurs Des Machines Électrostatiques Permettant d'augmenter la Tension
1952-11-11	US	2617976	Felici, Noël J	Electrostatic Machine
1953-03-15	CH	289496	Felici, Noël J	Machine Électrostatique À Induction, À Transporteurs Conducteurs
1953-07-07	US	2644903	Lehrer, Norman H	Self-Starting Electrostatic Generator
1953-08-18	US	2649566	Morel, Roger	Polarity Reversal Device for Electrostatic Machines
1953-09-16	FR	1051430	Felici, Noël J	Perfectionnements aux machines électrostatiques à transporteurs isolants
1953-10-20	US	2656502	Felici, Noël J	Electrostatic Machine
1953-12-08	US	2662191	Okey, Perry	Electrostatic Machine
1954-01-26	US	2667615	Brown, Robert G	Electrostatic Generator
1954-02-16	CA	500075	Felici, Noël J	Commutators
1954-04-13	US	2675516	Felici, Noël J	High-Voltage Electrostatic Generator Machine
1954-06-01	CA	503419	Felici, Noël J	Explosion Engine Ignition
1954-07-10	AT	178964B	Felici, Noël J	Elektrostatische Maschine Mit Aus Isolierstoff Bestehenden Übertragungsorganen
1954-08-03	US	2685654	Mennesson, Marcel	Electrostatic Machine Producing a Periodical Discharge
1955-02-08	US	2701844	Wasson, Hodge R	Method and Apparatus for Electrostatic Generation of Electricity
1955-02-15	US	2702353	Herson, Jacob L, et al	Miniature Printed Circuit Electrostatic Generator
1955-02-15	US	2702355	Felici, Noël J	Adjustable Voltage Glow Discharge Device
1955-02-22	US	2702869	Felici, Noël J	Electrostatic Generator Machine
1955-09-26	FR	1100901	Felici, Noël J; Gartner, Elie	Organe Inducteur Pour Machine Électrostatique À Transporteur Isolant
1955-09-26	FR	1100904	Felici, Noël J; Point, Marcel	Génératrice Électrostatique À Transporteurs Conducteurs Auto-Excitée Et À Autoamorçage Rapide
1955-10-10	FR	1101696	Felici, Noël J; Morel, Roger	Générateur Électrostatique d'impulsions Brèves de Courant À Haute Tension
1956-01-17	CA	520763	Felici, Noël J	Electrostatic Machine
1956-02-28	FR	65511E	Felici, Noël J	Machines Électrostatiques À Barres
1956-03-06	US	2737625	Felici, Noël J	Device for Supplying Stepped DC Voltages
1956-03-20	US	2739248	Meier, Wilber L	Electrostatic Generator
1956-05-15	CH	313910	Felici, Noël J; Morel, Roger	Génératrice Électrostatique d'impulsions Brèves de Courant À Haute Tension
1956-06-26	CA	526843	Felici, Noël J	High Voltage Electrostatic Generator Machine
1956-07-10	US	2754433	Point, Marcel	Electrostatic Machine Generating Different Potentials
1956-07-24	US	2756352	Felici, Noël J	Electrostatic Generator
1956-10-16	US	2767335	Felici, Noël J, et al	Electrostatic Machine With Enrobed Inductor Member
1956-11-30	CH	317644	Felici, Noël J	Machine Électrostatique
1956-12-10	AT	187972B	Felici, Noël J; Gartner, Elie	Elektrostatische Maschine
1957-01-08	US	2777078	Herchenbach, Wolfgang	Electrostatic High Tension Generator
1957-01-15	CA	535843	Felici, Noël J	Electrostatic Machine
1957-01-15	CA	535844	Felici, Noël J	Electrostatic Generator Machines
1957-02-12	US	2781460	Felici, Noël J	Electrostatic Machine With Conveyor of Insulating Material
1957-03-12	US	2785320	Morel, Roger	Construction of an Electrostatic Machine Having an Insulating Conveyer
1957-06-25	US	2797345	Felici, Noël J; Point, Marcel	Electrostatic Generator and Exciter
1957-08-15	CH	323729	Felici, Noël J	Dispositif d'excitation d'une Génératrice Électrostatique À Influence
1957-10-22	US	2810878	Felici, Noël J	System of Regulating the Output Potential of an Electrostatic Machine
1957-10-29	CA	548138	Point, Marcel; Felici, Noël J	Electrostatic Generator Machine
1957-11-19	CA	549124	Felici, Noël J; Point, Marcel	Electrostatic Generator and Exciter
1957-12-31	US	2818513	Felici, Noël J; Point, Marcel	Electrostatic Generator Capable of Rapid Build Up of Potential
1958-01-07	CA	551135	Felici, Noël J	Electrostatic Machines
1958-05-27	US	2836785	Neubert, Ulrich	Electrostatic Machine
1958-06-24	US	2840729	Kreuthmeir, Donald W	Electrostatic Generator Construction
1958-10-28	US	2858460	Wilson, Lester E Jr	Electrostatic Generator
1958-11-11	US	2860264	Felici, Noël J; Point, Marcel	Quick Starting Electrostatic Generator
1958-11-14	FR	1166713	Felici, Noël J	Dispositif de Régulation Pour Machines Électrostatiques
1959-02-24	CA	571214	Point, Marcel; Felici, Noël J	Electrostatic Generator Capable of Rapid Build-Up of Potential
1959-04-30	CH	337923	Felici, Noël J	Improvements In Or Relating to Electrostatic Machines
1959-09-30	CH	341216	Felici, Noël J; Morel, Roger	Générateur Électrostatique d'impulsions Brèves de Courant À Haute Tension
1959-11-17	CA	587007	Felici, Noël J	System for Regulating the Output Potential of an Electrostatic Machine
1959-11-24	CA	587731	Felici, Noël J; Morel, Roger	Quick Starting Electrostatic Generator
1959-12-22	CA	589142	Felici, Noël J; Gartner, Elie	Electrostatic Machine With Enrobed Inductor Member
1962-06-12	US	3039011	Gale, Alfred J	Electrostatic Generator
1962-09-25	US	3056052	Hand, Eugene E	Reduction of Voltage Fluctuations in Electrostatic Equipment
1962-10-30	US	3061745	Frederick, W J	High Voltage Electrostatic Machine
1963-01-01	US	3071702	Enge, H A	High-Voltage Generator With Solid Insulation
1963-06-18	US	3094653	Le May, Dan B; Drexel, Charles F	Electrostatic Generator
1964-02-25	US	3122660	Giannini, G M, et al	High Voltage Electrostatic Generator
1964-03-09	US	3173033	Gignoux, D	Oblique Field Electrostatic Generator
1964-04-09	DE	1167428	Felici, Noël J	Spannungsregelschaltungsanordnung
1964-08-04	US	3143671	Gale, Alfred J	Brushless High Voltage D.C. Electrostatic Machine
1964-12-14	FR	1381306	Felici, Noël J	Procédé d'ionisation d'un Local d'habitation Et Dispositif Pour la Mise En Oeuvre de Ce Procédé
1964-12-14	FR	1381307	Felici, Noël J; Briere, Georges B	Procédé d'obtention de Liquides Polaires de Grande Résistivité Et Mode d'utilisation de Ces Diélectriques En Champ Électrique Intense
1965-01-26	US	3167666	Janner, K, et al	Combined Accelerator and Static Voltage Generator
1965-02-26	FR	1390314	Felici, Noël J	Method and Apparatus for Regulating the Voltage of a Rotatable Electrostatic Generator
1965-02-26	FR	1390315	Felici, Noël J	Improvements In Or Relating to Systems for Controlling the Electric Potential of Aircraft In Flight and Applications Thereof to the Electrostatic Spray Treatment of Vegetation
1965-05-18	US	3184621	Christofferson, James	High Voltage Terminal for Tandem-Type Charged-Particle Accelerator
1965-06-29	US	3192414	Reusser, Peter U	High Voltage, Electrostatic Generators
1965-07-08	DE	977224	Felici, Noël J	Elektrostatische Maschine
1965-08-11	FR	1397294	Felici, Noël J	Perfectionnements Aux Générateurs Électrostatiques
1965-09-14	US	3206625	Stuetzer, O M	Hydrodynamic High Voltage Generator
1965-10-05	US	3210643	Else, Harry D; Fear, Robert C	Electrostatic Generator
1965-12-07	US	3222553	Reusser, Peter U	Electrostatic Generator
1966-03-11	FR	1431070	Felici, Noël J	Perfectionnements Aux Appareils Rotatifs À Champ Électrique
1966-03-15	CH	398758	Felici, Noël J	Dispositif de Régulation de la Tension d'un Générateur À Haute Tension
1966-05-11	FR	86545E	Felici, Noël J; Briere, Georges B	Procédé d'obtention de Liquides Polaires de Grande Résistivité Et Mode d'utilisation de Ces Diélectriques En Champ Électrique Intense
1966-06-14	US	3256450	Gartner, Elie	Electrostatic Generator
1966-09-07	FR	1441772	Felici, Noël J; Briere, Georges B	Perfectionnements Aux Appareils Utilisant Un Milieu Diélectrique Coopérant Dans Un Champ Électrique
1967-05-16	US	3320517	Gignoux, Dominique	Brushless Oblique Field Electrostatic Generator
1967-06-06	US	3324315	Morel, Roger Claudius Marius	Electrostatic Generating Unit
1968-09-03	US	3400282	Felici, Noël J	Rotary Electrostatic Electrical Apparatus
1968-11-18	FR	1532001	Felici, Noël J	Perfectionnements Aux Générateurs Électrostatiques
1968-12-24	US	3418501	Felici, Noël J; Gartner, Elie	High Voltage Electrostatic Machinery
1969-03-18	US	3433981	Bolee, Boudewijn	Electrostatic Synchronous Motor
1969-05-29	DE	1488491	Felici, Noël J	Regulierungsverfahren Fuer Die Spannung Elektrostatischer Umlaufgeneratoren Und Ausfuehrungsarten Des Verfahrens
1970-01-22	DE	1513754	Felici, Noël J	Dielektrische Medien Verwendendes, Elektrisches Umlaufendes Gerät
1970-04-30	DE	1952973	Felici, Noël J	Electric Generators
1970-06-11	DE	1538758	Felici, Noël J; Gartner, Elie	Elektrostatische Hochspannungsmaschinen
1971-10-19	US	3614481	Halliday, Robert B	Electrostatic Generator
1978-11-28	US	4127804	Breaux, Onezime P	Electrostatic Energy Conversion System
1986-06-17	US	4595852	Gundlach, Robert W	Electrostatic Generator
1988-12-06	US	4789802	Miyake, Yosinobu	High Voltage, Multi-Stage Electrostatic Generator
1990-01-30	US	4897592	Hyde, William W	Electrostatic Energy Field Power Generating System
1991-02-05	US	4990813	Paramo, Gabriel Lorente	Rolling Triboelectric Generator