Edison's U.S. Patents, 1890-1899

The following list contains the 113 patents for which Edison executed an application between January 1890 and December 1899. It is arranged in chronological order by execution date, which 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 issue date, the time at which the patent, having passed inspection and any legal challenges, was awarded.

1868-1879

1880-1882

1883-1889

1890-1899

1900-1909

1910-1931

No.	Executed	Applied	Issued	Patent No.	Title
653.	01/16/90	01/20/90	08/19/90	434,588	Magnetic Ore-Separator
654.	02/08/90	02/17/90	09/30/90	437,427	Method of Making Phonogram-Blanks
655.	02/08/90	02/17/90	12/15/91	465,250	Process of Extracting Copper Pyrites
656.	02/14/90	02/20/90	08/19/90	434,589	Propelling Mechanism for Electric Vehicles
657.	04/25/90	05/05/90	10/14/90	438,310	Lamp-Base
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
660.	05/06/90	05/24/90	06/30/91	454,941	Phonograph Recorder or Reproducer
661.	05/17/90	05/24/90	09/09/90	436,127	Electric Motor
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
664.	06/02/90	06/10/90	09/23/90	436,970	Apparatus for Transmitting Power
665.	07/05/90	07/30/90	06/09/91	453,741	Phonograph
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
668.	07/05/90	07/30/90	10/18/92	484,585	Phonograph
669.	08/04/90	08/12/90	07/21/91	456,302	Phonograph
670.	08/09/90	08/28/90	06/14/92	476,984	Expansible Pulley
671.	08/09/90	08/28/90	03/21/93	493,858	Transmission of Power
672.	09/06/90	09/10/90	08/11/91	457,343	Magnetic Belting
673.	09/12/90	09/15/90	01/13/91	444,530	Leading-In Wire for Incandescent Lamps
674.	09/13/90	09/17/90	02/12/95	534,209	Incandescent Electric Lamp
675.	10/27/90	11/21/90	06/14/92	476,985	Trolley for Electric Railways
676.	10/27/90	11/21/90	06/27/93	500,280	Phonograph
677.	10/27/90	11/21/90	07/02/95	541,923	Phonograph
678.	11/17/90	11/21/90	08/11/91	457,344	Smoothing-Tool for Phonogram-Blanks
679.	11/17/90	11/21/90	09/29/91	460,123	Phonogram-Blank Carrier
680.	11/17/90	11/21/90	06/27/93	500,281	Phonograph
681.	11/17/90	12/03/90	07/02/95	541,924	Phonograph
682.	12/01/90	12/03/90	06/27/93	500,282	Phonograph
683.	12/01/90	12/03/90	01/12/97	575,151	Phonograph
684.	12/01/90	12/03/90	06/14/98	605,667	Phonograph
685.	12/01/90	12/03/90	09/13/98	610,706	Phonograph
686.	12/01/90	12/03/90	04/11/99	622,843	Phonograph
687.	12/06/90	12/15/90	08/16/98	609,268	Phonograph
688.	12/20/90	01/19/91	03/14/93	493,425	Electric Locomotive
689.	01/20/91	01/24/91	06/14/92	476,992	Incandescent Electric Lamp
690.	02/04/91	02/09/91	04/25/93	496,191	Phonograph
691.	02/04/91	02/24/91	03/15/92	470,926	Dynamo-Electric Machine or Motor
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
694.	03/04/91	03/23/91	12/29/91	465,973	Armature for Dynamos or Motors
695.	03/04/91	03/26/91	03/15/92	470,927	Driving Mechanism for Cars
696.	03/20/91	03/26/91	12/29/91	465,970	Armature Connection for Motors or Generators
697.	03/20/91	04/04/91	02/16/92	468,950	Commutator-Brush for Electric Motors and Dynamos
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
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
704.	07/31/91	08/14/91	11/28/93	509,518	Electric Railway
705.	07/31/91	08/24/91	12/15/91	465,251	Method of Bricking Fine Ores
706.	07/31/91	08/24/91	11/08/92	485,840	Method of Bricking Fine Iron Ores
707.	07/31/91	08/24/91	03/14/93	493,426	Apparatus for Exhibiting Photographs of Moving Objects
708.	07/31/91	08/24/91	08/31/97	589,168	Kinetographic Camera
709.	07/31/91	08/25/91	03/15/92	470,928	Alternating-Current Generator
710.	07/31/91	08/25/91	06/14/92	476,990	Electric Meter
711.	07/31/91	09/02/91	10/11/92	484,183	Electrical Depositing-Meter
712.	07/31/91	10/01/91	06/14/92	476,993	Electric-Arc Lamp
713.	08/28/91	10/01/91	03/15/92	470,929	Magnetic Separator
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
718.	08/28/91	10/01/91	05/10/92	474,592	Ore-Conveying Apparatus
719.	08/28/91	10/01/91	05/30/93	498,385	Roller for Crushing Ore or Other Material
720.	08/28/91	10/08/91	05/10/92	474,593	Dust-Proof Swivel Shaft-Bearing
721.	10/08/91	10/10/91	03/15/92	470,930	Dynamo-Electric Machine
722.	10/08/91	10/15/91	06/07/92	476,532	Ore-Screening Apparatus
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
725.	06/27/92	07/02/92	07/21/96	564,423	Process of Separating 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
728.	08/24/92	08/29/92	01/23/94	513,096	Method of and Apparatus for Mixing Materials
729.	03/15/93	03/17/93	11/28/93	509,428	Composition Brick and Method of Making Same
730.	05/22/93	05/24/93	01/23/94	513,097	Phonograph
731.	12/13/93	12/19/93	09/08/96	567,187	Crushing-Roll
732.	12/13/93	12/19/93	04/12/98	602,064	Conveyer
733.	05/16/96	05/19/96	09/10/07	865,367	Fluorescent Electric Lamp
734.	01/25/97	01/27/97	05/31/98	604,740	Governor for Motors
735.	01/25/97	01/27/97	07/19/98	607,588	Phonograph
736.	05/14/97	06/12/97	05/28/01	675,056	Magnetic Separator
737.	05/14/97	07/16/97	11/21/99	637,327	Rolls
738.	05/14/97	07/16/97	04/23/01	672,616	Method of Breaking Rock
739.	05/14/97	07/16/97	06/18/01	676,618	Magnetic Separator
740.	06/10/97	06/29/97	06/14/98	605,475	Drying Apparatus
741.	06/10/97	06/29/97	06/14/98	605,668	Mixer
742.	06/10/97	06/29/97	02/05/01	667,201	Flight Conveyer
743.	06/10/97	06/29/97	04/02/01	671,314	Lubricating Journal-Bearings
744.	06/10/97	06/29/97	04/02/01	671,315	Conveyer
745.	06/10/97	06/29/97	05/28/01	675,057	Apparatus for Screening Pulverized Material
746.	02/21/98	03/05/98	11/11/02	713,209	Process of Duplicating Phonograms
747.	03/21/98	03/24/98	07/01/02	703,774	Reproducer for Phonographs
748.	03/29/98	03/31/98	06/06/99	626,460	Filament for Incandescent Lamps and Process of Manufacturing Same
749.	04/11/98	05/23/98	05/08/00	648,933	Drier
750.	04/11/98	05/23/98	11/06/00	661,238	Machine for Forming Pulverized Material into Briquets
751.	04/11/98	05/23/98	05/14/01	674,057	Grinding or Crushing Rolls
752.	04/11/98	05/23/98	07/01/02	703,562	Apparatus for Bricking Pulverized Material
753.	04/11/98	05/23/98	07/08/02	704,010	Apparatus for Concentrating Magnetic Iron Ores
754.	09/19/98	09/24/98	10/09/00	659,389	Electric Meter
755.	02/06/99	03/17/99	05/08/00	648,934	Process of Screening or Sizing Very Fine Materials
756.	02/06/99	03/17/99	12/14/00	663,015	Electric Meter
757.	02/10/99	03/17/99	12/10/01	688,610	Phonograph Recording Apparatus
758.	02/24/99	02/27/99	02/20/00	643,764	Method of Reheating Compressed Air for Industrial Purposes
759.	03/23/99	09/16/99	10/23/00	660,293	Electric Meter
760.	04/10/99	04/24/99	01/16/00	641,281	Expanding Pulley
761.	06/15/99	07/01/99	05/05/03	727,116	Grinding-Rolls
762.	09/12/99	09/21/99	06/26/00	652,457	Phonograph
763.	10/27/99	10/28/99	05/08/00	648,935	Apparatus for Duplicating Phonograph-Records
764.	11/24/99	12/06/99	11/05/01	685,911	Apparatus for Reheating Compressed Air for Industrial Purposes
765.	12/09/99	12/12/99	09/18/00	657,922	Apparatus for Reheating Compressed Air for Industrial Purposes