Following the 1867 overthrow and execution of Maximilian, the property was, in 1872, returned to Dr. Martinez del Rio. In 1917, with the end of the armed phase of the Mexican Revolution, President Venustiano Carranza expropriated the properties, paying MXN$886,473 for both the property and the construction of a residence that would be close to Chapultepec Castle (which at the time was used as the official residence) so that his most trustworthy cabinet member could live there. Because of this, the first inhabitant of the residence was Álvaro Obregón while he held the post of Navy and War Secretary. After his tenure the residence was abandoned.
In 1934, President Lázaro Cárdenas took office but refused to use the Castle of Chapultepec as his official residence. He was offered use of Rancho la Hormiga (English: The Ant Ranch), which he accepted. He changed its name to "Los Pinos" (The Pines) in honor of the ranch where he met his wife.
Los Pinos has been home to eleven presidents and their families. In the year 2000, President Vicente Fox opened up the residence to the public and chose one of the nearby "cottages" as his home.
Wipo Publishes Patent of Elisabet De Los Pinos for "Virion Derived Protein Nanoparticles for Delivering Diagnostic or Therapeutic Agents for the Treatment of Skin-Related Diseases" (American Inventor)
Jan 25, 2013; GENEVA, Jan. 25 -- Publication No. WO/2013/009717 was published on Jan. 17.Title of the invention: "VIRION DERIVED PROTEIN...