Edison's U.S. Patents, 434,585-610,706

This list contains the patents Edison received between July 1890 and December 1898. It is arranged in chronological order by issue date, the time at which the patent, having passed inspection and any legal challenges, was awarded. The execution date is the date on which Edison signed the application and the date in the patenting process that comes closest to the time of actual inventive activity; the application date is the date on which the Patent Office received and recorded the application. The number in the first column indicates the order of the patents' execution.

90,646-242,901	248,416-288,318	293,432-431,018	434,585-610,706	622,843-976,792	991,433-1,908,830
1868-June 1881	July 1881-Dec. 1883	Jan. 1884-June 1890	July 1890-Dec. 1898	1899-1910	1911-1931

No.	Executed	Applied	Issued	PatentNo.	Title
192.	07/29/80	08/09/80	08/19/90	434,585	Telegraph-Relay
582.	01/21/88	01/30/88	08/19/90	434,586	Electric Generator
583.	01/21/88	01/30/88	08/19/90	434,587	Thermo-Electric Battery
653.	01/16/90	01/20/90	08/19/90	434,588	Magnetic Ore-Separator
656.	02/14/90	02/20/90	08/19/90	434,589	Propelling Mechanism for Electric Vehicles
274.	06/21/81	09/03/81	09/02/90	435,687	Means for Charging and Using Secondary Batteries
476.	09/14/83	09/19/83	09/02/90	435,688	Process of and Apparatus for Generating Electricity
530.	11/30/85	02/19/86	09/02/90	435,689	Telegraphy
616.	08/31/88	09/15/88	09/02/90	435,690	Method of Making Armatures for Dynamo-Electric Machines
661.	05/17/90	05/24/90	09/09/90	436,127	Electric Motor
498.	06/02/84	06/10/84	09/23/90	436,968	Method of and Apparatus for Drawing Wire
499.	06/02/84	06/10/84	09/23/90	436,969	Method of and Apparatus for Drawing Wire
664.	06/02/90	06/10/90	09/23/90	436,970	Apparatus for Transmitting Power
527.	10/07/85	10/23/85	09/30/90	437,422	Telegraphy
608.	07/14/88	07/17/88	09/30/90	437,423	Phonograph
624.	10/15/88	10/17/88	09/30/90	437,424	Phonograph
636.	02/01/89	02/11/89	09/30/90	437,425	Phonograph-Recorder
649.	07/20/89	08/10/89	09/30/90	437,426	Phonograph
654.	02/08/90	02/17/90	09/30/90	437,427	Method of Making Phonogram-Blanks
658.	04/29/90	05/05/90	09/30/90	437,428	Propelling Device for Electric Cars
659.	04/29/90	05/09/90	09/30/90	437,429	Phonogram-Blank
425.	11/28/82	12/08/82	10/14/90	438,298	Manufacture of Incandescent Electric Lamps
438.	02/17/83	03/16/83	10/14/90	438,299	Manufacture of Carbon Filaments
459.	06/01/83	06/07/83	10/14/90	438,300	Gage for Testing Fibers for Incandescent-Lamp Carbons
468.	06/25/83	06/29/83	10/14/90	438,301	System of Electric Lighting
472.	07/27/83	10/10/83	10/14/90	438,302	Commutator for Dynamo-Electric Machines
500.	06/02/84	06/10/84	10/14/90	438,303	Arc Lamp
507.	09/24/84	12/15/84	10/14/90	438,304	Electric Signaling Apparatus
519.	01/14/85	10/14/85	10/14/90	438,305	Fuse-Block
531.	12/22/85	02/19/86	10/14/90	438,306	Telephone
537.	07/15/86	07/17/86	10/14/90	438,307	Manufacture of Incandescent Electric Lamps
546.	11/09/86	12/06/86	10/14/90	438,308	System of Electrical Distribution
642.	04/25/89	05/11/89	10/14/90	438,309	Method of Insulating Electrical Conductors
657.	04/25/90	05/05/90	10/14/90	438,310	Lamp-Base
278.	07/01/81	08/30/81	10/28/90	439,389	Electric-Lighting System
366.	06/19/82	06/26/82	10/28/90	439,390	System of Electric Lighting
315.	12/05/81	08/07/82	10/28/90	439,391	Junction-Box for Electric Wires
384.	08/12/82	08/22/82	10/28/90	439,392	Electric-Lighting System
388.	08/25/82	09/13/82	10/28/90	439,393	Carbonizing-Chamber
651.	12/11/89	12/27/89	12/30/90	443,507	Phonograph
673.	09/12/90	09/15/90	01/13/91	444,530	Leading-In Wire for Incandescent Lamps
367.	06/19/82	06/26/82	02/17/91	446,666	System of Electric Lighting
296.	10/11/81	08/07/82	02/17/91	446,667	Locomotive for Electric Railways
355.	06/03/82	08/07/82	02/17/91	446,668	Electric-Arc Light
439.	02/17/83	03/16/83	02/17/91	446,669	Manufacture of Filaments for Incandescent Electric Lamps
383.	08/05/82	08/07/82	03/24/91	448,778	Electric Railway
538.	07/15/86	07/19/86	03/24/91	448,779	Telegraph
604.	06/30/88	07/07/88	03/24/91	448,780	Device for Turning Off Phonogram-Blanks
612.	07/16/88	07/30/88	03/24/91	448,781	Turning-Off Device for Phonographs
609.	07/14/88	07/17/88	04/21/91	450,740	Phonograph-Recorder
131.	05/31/77	06/02/77	05/26/91	452,913	Sextuplex Telegraph
132.	05/31/77	06/02/77	06/02/91	453,601	Sextuplex Telegraph
665.	07/05/90	07/30/90	06/09/91	453,741	Phonograph
542.	10/26/86	10/27/86	06/16/91	454,262	Incandescent-Lamp Filament
316.	12/05/81	08/07/82	06/23/91	454,558	Incandescent Electric Lamp
660.	05/06/90	05/24/90	06/30/91	454,941	Phonograph Recorder or Reproducer
666.	07/05/90	07/30/90	06/30/91	454,942	Phonograph
667.	07/05/90	07/30/90	07/21/91	456,301	Phonograph-Doll
669.	08/04/90	08/12/90	07/21/91	456,302	Phonograph
672.	09/06/90	09/10/90	08/11/91	457,343	Magnetic Belting
678.	11/17/90	11/21/90	08/11/91	457,344	Smoothing-Tool for Phonogram-Blanks
432.	01/13/83	01/22/83	09/22/91	459,835	Manufacture of Incandescent Electric Lamps
345.	05/19/82	05/26/82	09/29/91	460,122	Process of and Apparatus for Generating Electricity
679.	11/17/90	11/21/90	09/29/91	460,123	Phonogram-Blank Carrier
639.	03/22/89	03/25/89	11/03/91	462,540	Incandescent Electric Lamp
368.	06/19/82	06/28/82	12/08/91	464,822	System of Distributing Electricity
655.	02/08/90	02/17/90	12/15/91	465,250	Process of Extracting Copper Pyrites
705.	07/31/91	08/24/91	12/15/91	465,251	Method of Bricking Fine Ores
696.	03/20/91	03/26/91	12/29/91	465,970	Armature Connection for Motors or Generators
525.	05/14/85	05/23/85	12/29/91	465,971	Means for Transmitting Signals Electrically
650.	11/14/89	11/18/89	12/29/91	465,972	Phonograph
694.	03/04/91	03/23/91	12/29/91	465,973	Armature for Dynamos or Motors
543.	10/26/86	10/27/86	01/05/92	466,400	Cut-Out for Incandescent Lamps
346.	05/19/82	05/26/82	01/05/92	466,460	Art of Electrolytic Decomposition
562.	02/07/87	03/08/87	02/16/92	468,949	Converter System for Electric Railways
697.	03/20/91	04/04/91	02/16/92	468,950	Commutator-Brush for Electric Motors and Dynamos
479.	09/14/83	10/10/83	03/15/92	470,922	Manufacture of Filaments for Incandescent Lamps
567.	08/09/87	08/19/87	03/15/92	470,923	Railway-Signaling
571.	09/26/87	09/30/87	03/15/92	470,924	Electric Conductor
601.	06/21/88	07/02/88	03/15/92	470,925	Manufacture of Filaments for Incandescent Lamps
691.	02/04/91	02/24/91	03/15/92	470,926	Dynamo-Electric Machine or Motor
695.	03/04/91	03/26/91	03/15/92	470,927	Driving Mechanism for Cars
709.	07/31/91	08/25/91	03/15/92	470,928	Alternating-Current Generator
713.	08/28/91	10/01/91	03/15/92	470,929	Magnetic Separator
721.	10/08/91	10/10/91	03/15/92	470,930	Dynamo-Electric Machine
714.	08/28/91	10/01/91	03/22/92	471,268	Ore-Conveyer and Method of Arranging Ore Thereon
715.	08/28/91	10/01/91	04/05/92	472,288	Dust-Proof Bearing for Shafts
716.	08/28/91	10/01/91	04/12/92	472,752	Dust-Proof Journal-Bearing
717.	08/28/91	10/01/91	04/12/92	472,753	Ore-Screening Apparatus
127.	04/18/77	04/27/77	05/03/92	474,230	Speaking-Telegraph
134.	07/09/77	07/20/77	05/03/92	474,231	Speaking-Telegraph
534.	02/17/86	02/18/86	05/03/92	474,232	Speaking-Telegraph
618.	09/12/88	09/20/88	05/10/92	474,591	Process of Extracting Gold from Sulphide Ores
718.	08/28/91	10/01/91	05/10/92	474,592	Ore-Conveying Apparatus
720.	08/28/91	10/08/91	05/10/92	474,593	Dust-Proof Swivel Shaft-Bearing
698.	06/03/91	06/09/91	05/24/92	475,491	Electric Locomotive
699.	06/03/91	06/09/91	05/24/92	475,492	Electric Locomotive
700.	06/03/91	06/09/91	05/24/92	475,493	Electric Locomotive
701.	06/03/91	06/09/91	05/24/92	475,494	Electric Railway
365.	06/12/82	08/07/82	06/07/92	476,527	System of Electric Lighting
440.	02/17/83	03/16/83	06/07/92	476,528	Incandescent Electric Lamp
473.	07/27/83	10/10/83	06/07/92	476,529	System of Electrical Distribution
565.	06/01/87	06/04/87	06/07/92	476,530	Incandescent Electric Lamp
253.	04/22/81	04/26/81	06/07/92	476,531	Electric-Lighting System
722.	10/08/91	10/15/91	06/07/92	476,532	Ore-Screening Apparatus
564.	05/24/87	06/13/87	06/14/92	476,983	Pyromagnetic Generator
670.	08/09/90	08/28/90	06/14/92	476,984	Expansible Pulley
675.	10/27/90	11/21/90	06/14/92	476,985	Trolley for Electric Railways
692.	02/24/91	03/02/91	06/14/92	476,986	Means for Propelling Electric Cars
693.	02/24/91	03/02/91	06/14/92	476,987	Electric Locomotive
702.	07/31/91	08/14/91	06/14/92	476,988	Lightning-Arrester
703.	07/31/91	08/14/91	06/14/92	476,989	Conductor for Electric Railways
710.	07/31/91	08/25/91	06/14/92	476,990	Electric Meter
597.	05/09/88	05/21/88	06/14/92	476,991	Method of and Apparatus for Separating Ores
689.	01/20/91	01/24/91	06/14/92	476,992	Incandescent Electric Lamp
712.	07/31/91	10/01/91	06/14/92	476,993	Electric-Arc Lamp
515.	12/31/84	10/14/85	07/12/92	478,743	Telephone-Repeater
280.	07/26/81	12/06/81	07/19/92	479,184	Fac-simile Telegraph
99.	08/19/74	09/01/74	08/09/92	480,567	Duplex Telegraph
243.	03/02/81	03/12/81	09/13/92	482,549	Means for Controlling Electric Generation
711.	07/31/91	09/02/91	10/11/92	484,183	Electrical Depositing-Meter
544.	10/26/86	10/27/86	10/11/92	484,184	Manufacture of Carbon Filaments
559.	12/20/86	12/27/86	10/11/92	484,185	Manufacture of Carbon Filaments
581.	01/17/88	01/30/88	10/18/92	484,582	Duplicating Phonograms
662.	05/24/90	05/27/90	10/18/92	484,583	Phonograph Cutting-Tool
663.	05/24/90	05/27/90	10/18/92	484,584	Phonograph-Reproducer
668.	07/05/90	07/30/90	10/18/92	484,585	Phonograph
553.	12/06/86	12/15/86	11/08/92	485,615	Manufacture of Carbon Filaments
554.	12/06/86	12/15/86	11/08/92	485,616	Manufacture of Carbon Filaments
610.	07/14/88	07/17/88	11/08/92	485,617	Incandescent-Lamp Filament
706.	07/31/91	08/24/91	11/08/92	485,840	Method of Bricking Fine Iron Ores
726.	07/09/92	07/20/92	11/08/92	485,841	Method of Magnetically Separating Ores
727.	07/09/92	07/20/92	11/08/92	485,842	Method of Magnetic-Ore Separation
521.	03/27/85	04/07/85	11/22/92	486,634	System of Railway Signaling
600.	05/26/88	05/29/88	12/20/92	488,189	Phonograph
599.	05/22/88	06/07/88	12/20/92	488,190	Phonograph-Reproducer
627.	01/10/89	01/19/89	12/20/92	488,191	Phonogram-Blank
480.	10/09/83	11/01/83	01/31/93	490,953	Art of Generating Electricity
545.	11/02/86	11/06/86	01/31/93	490,954	Manufacture of Carbon Filaments for Electric Lamps
723.	11/10/91	11/12/91	02/21/93	491,992	Cut-Out for Incandescent Electric Lamps
724.	04/05/92	04/11/92	02/21/93	491,993	Stop Device
407.	10/19/82	10/26/82	02/21/93	492,150	Process of Coating Conductors for Incandescent Lamps
139.	08/31/77	09/05/77	03/07/93	492,789	Speaking-Telegraph
688.	12/20/90	01/19/91	03/14/93	493,425	Electric Locomotive
707.	07/31/91	08/24/91	03/14/93	493,426	Apparatus for Exhibiting Photographs of Moving Objects
671.	08/09/90	08/28/90	03/21/93	493,858	Transmission of Power
690.	02/04/91	02/09/91	04/25/93	496,191	Phonograph
719.	08/28/91	10/01/91	05/30/93	498,385	Roller for Crushing Ore or Other Material
614.	07/27/88	07/30/88	06/20/93	499,879	Phonograph
676.	10/27/90	11/21/90	06/27/93	500,280	Phonograph
680.	11/17/90	11/21/90	06/27/93	500,281	Phonograph
682.	12/01/90	12/03/90	06/27/93	500,282	Phonograph
574.	11/09/87	11/11/87	10/10/93	506,215	Method of Making Plate Glass
646.	06/29/89	07/02/89	10/10/93	506,216	Apparatus for Making Glass
729.	03/15/93	03/17/93	11/28/93	509,428	Composition Brick and Method of Making Same
488.	11/15/83	12/12/83	11/28/93	509,517	System of Electrical Distribution
704.	07/31/91	08/14/91	11/28/93	509,518	Electric Railway
133.	05/31/77	06/02/77	01/16/94	512,872	Sextuplex Telegraph
728.	08/24/92	08/29/92	01/23/94	513,096	Method of and Apparatus for Mixing Materials
730.	05/22/93	05/24/93	01/23/94	513,097	Phonograph
652.	12/11/89	12/27/89	03/23/94	513,095	Phonograph
293.	09/27/81	11/11/81	08/07/94	524,136	Regulator for Dynamo-Electric Machines
547.	11/09/86	12/06/86	08/14/94	524,378	System of Electrical Distribution
555.	12/06/86	12/15/86	08/28/94	525,007	Manufacture of Carbon Filaments
177.	03/10/80	03/20/80	09/11/94	525,888	Manufacture of Carbons for Electric Lamps
494.	01/22/84	01/28/84	09/18/94	526,147	Art of Plating One Material with Another
490.	12/15/83	01/04/84	02/12/95	534,206	Filament for Incandescent Lamps
560.	12/20/86	12/27/86	02/12/95	534,207	Manufacture of Carbon Filaments
596.	05/07/88	05/21/88	02/12/95	534,208	Induction-Converter
674.	09/13/90	09/17/90	02/12/95	534,209	Incandescent Electric Lamp
677.	10/27/90	11/21/90	07/02/95	541,923	Phonograph
681.	11/17/90	12/03/90	07/02/95	541,924	Phonograph
356.	06/03/82	08/07/82	08/06/95	543,985	Incandescent Conductor for Electric Lamps
401.	10/17/82	10/20/82	08/06/95	543,986	Process of Treating and Products Derived from Vegetable Fibers
402.	10/17/82	10/20/82	08/06/95	543,987	Filament for Incandescent Lamps
568.	08/26/87	08/29/87	08/27/95	545,405	System of Electrical Distribution
572.	10/17/87	10/21/87	07/07/96	563,462	Method of and Apparatus for Drawing Wire
725.	06/27/92	07/02/92	07/21/96	564,423	Process of Separating Ores
731.	12/13/93	12/19/93	09/08/96	567,187	Crushing-Roll
683.	12/01/90	12/03/90	01/12/97	575,151	Phonograph
708.	07/31/91	08/24/91	08/31/97	589,168	Kinetographic Camera
732.	12/13/93	12/19/93	04/12/98	602,064	Conveyer
734.	01/25/97	01/27/97	05/31/98	604,740	Governor for Motors
740.	06/10/97	06/29/97	06/14/98	605,475	Drying Apparatus
684.	12/01/90	12/03/90	06/14/98	605,667	Phonograph
741.	06/10/97	06/29/97	06/14/98	605,668	Mixer
735.	01/25/97	01/27/97	07/19/98	607,588	Phonograph
687.	12/06/90	12/15/90	08/16/98	609,268	Phonograph
685.	12/01/90	12/03/90	09/13/98	610,706	Phonograph

90,646-242,901
1868-June 1881

248,416-288,318
July 1881-Dec. 1883

293,432-431,018
Jan. 1884-June 1890

434,585-610,706
July 1890-Dec. 1898

622,843-976,792
1899-1910

991,433-1,908,830
1911-1931