List Of United States Patents
List of United States patents granted to Thomas A. Edison, arranged according to dates of execution of applications for such patents. This list shows the inventions as Mr. Edison has worked upon them from year to year


1868

NO. TITLE OF PATENT DATE EXECUTED DATE EXECUTED 90,646, Electrographic Vote Recorder . . . . .Oct. 13, 1868

1869

91,527 Printing Telegraph (reissued October 25, 1870, numbered 4166, and August 5, 1873, numbered 5519). . . . . . . .Jan. 25, 1869 96,567 Apparatus for Printing Telegraph (reissued February 1, 1870, numbered 3820). . . . . . . . . . . . . . . . .Aug. 17, 1869 96,681 Electrical Switch for Telegraph ApparatusAug. 27, 1869 102,320 Printing Telegraph--Pope and Edison (reissued April 17, 1877, numbered 7621, and December 9, 1884, numbered 10,542). . . . . . . . . . . . . . . Sept. 16, 1869 103,924 Printing Telegraphs--Pope and Edison (reissued August 5, 1873)

1870

103,035 Electromotor Escapement. . . . . . . . Feb. 5, 1870 128,608 Printing Telegraph Instruments . . . . .May 4, 1870 114,656 Telegraph Transmitting Instruments . .June 22, 1870 114,658 Electro Magnets for Telegraph Instruments. . . . . . . . . . . . . .June 22, 1870 114,657 Relay Magnets for Telegraph Instruments. . . . . . . . . . . . . .Sept. 6, 1870 111,112 Electric Motor Governors . . . . . . .June 29, 1870 113,033 Printing Telegraph Apparatus . . . . .Nov. 17, 1870