Edison's U.S. Patents, 293,432-431,018

This list contains the patents Edison received between January 1884 and June 1890. 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. ExecutedApplied IssuedPatentNo.Title
481.10/17/8310/18/8302/12/84293,432Electrical Generator or Motor
198.08/06/8008/09/8002/12/84293,433Insulation of Railroad-Tracks Used for Electrical Circuits
314.12/05/8108/07/8202/12/84293,434Incandescent Electric Lamp
378.07/07/8208/14/8202/12/84293,435Electrical Meter
155.12/04/7812/09/7804/01/84295,990Type-Writer
306.11/07/8111/28/8104/29/84297,580Electric-Arc Light
390.09/12/8209/22/8204/29/84297,581Incandescent Electric Lamp
465.06/25/8306/29/8304/29/84297,582Dynamo-Electric Machine
469.07/27/8310/10/8304/29/84297,583Dynamo-Electric Machine
474.08/08/8310/10/8304/29/84297,584Dynamo-Electric Machine
477.09/14/8310/10/8304/29/84297,585Incandescing Conductor for Electric Lamps
478.09/14/8310/10/8304/29/84297,586Electrical Conductor
484.11/15/8312/12/8304/29/84297,587Dynamo-Electric Machine
184.06/15/8007/03/8005/13/84298,679Method of Treating Carbons for Electric Lights
485.11/15/8312/12/8305/20/84298,954Dynamo-Electric Machine
486.11/15/8312/12/8305/20/84298,955Dynamo-Electric Machine
492.01/05/8401/24/8405/20/84298,956Mode of Operating Dynamo-Electric Machines
369.06/24/8208/14/8208/26/84304,082Electrical Meter
470.07/27/8310/10/8308/26/84304,083Dynamo-Electric Machine
471.07/27/8310/10/8308/26/84304,084Device for Protecting Electric-Light Systems from Lightning
487.11/15/8312/12/8308/26/84304,085System of Electrical Distribution
491.12/15/8301/24/8408/26/84304,086Incandescent Electric Lamp
493.01/12/8401/24/8408/26/84304,087Electrical Conductor
394.10/09/8210/12/8210/21/84307,029Filament for Incandescent Lamps
475.08/08/8310/10/8310/21/84307,030Electrical Meter
482.11/02/8311/15/8310/21/84307,031Electrical Indicator
497.02/09/8403/19/8403/17/85314,115Chemical Stock Quotation Telegraph
308.11/22/8111/29/8105/12/85317,631Incandescent Electric Lamp
410.10/26/8211/09/8205/12/85317,632Incandescent Electric Lamp
411.10/26/8211/09/8205/12/85317,633Incandescent Electric Lamp
466.06/25/8306/29/8310/20/85328,572Commutator for Dynamo-Electric Machines
503.09/12/8410/02/8410/20/85328,573System of Electric Lighting
504.09/12/8410/02/8410/20/85328,574System of Electric Lighting
505.09/12/8410/02/8410/20/85328,575System of Electric Lighting
509.12/03/8412/15/8410/27/85329,030Telephone
522.04/27/8505/08/8512/29/85333,289Telegraphy
523.04/30/8505/08/8512/29/85333,290Duplex Telegraphy
524.05/06/8505/16/8512/29/85333,291Way-Station Quadruplex Telegraphy
379.07/07/8208/14/8201/26/86334,853Mold for Carbonizing
483.11/10/8311/13/8303/02/86337,254Telephone
380.07/07/8208/14/8204/06/86339,278Electric Railway
496.02/08/8404/05/8404/06/86339,279System of Electrical Distribution
510.12/09/8412/15/8404/27/86340,707Telephonic Repeater
513.12/19/8401/12/8504/27/86340,708Electrical Signaling Apparatus
516.01/02/8510/14/8504/27/86340,709Telephone-Circuit
261.05/20/8105/31/8105/11/86341,644Incandescent Electric Lamp
450.05/08/8305/14/8305/11/86341,839Incandescing Electric Lamp
501.06/27/8408/07/8406/01/86343,017System of Electrical Distribution
514.12/19/8401/12/8508/10/86347,097Electrical Signaling Apparatus
518.01/12/8510/14/8508/24/86348,114Electrode for Telephone-Transmitters
520.03/27/8504/07/8510/05/86350,234System of Railway Signaling
532.12/28/8501/13/8610/05/86350,235Railway-Telegraphy
204.08/11/8008/27/8011/02/86351,855Electric Lamp
541.09/30/8610/05/8611/02/86351,856Incandescent Electric Lamp
413.11/03/8211/09/8212/07/86353,783Incandescent Electric Lamp
445.04/06/8304/17/8312/14/86354,310Manufacture of Carbon Conductors
302.10/29/8111/28/8103/01/87358,599Incandescent Electric Lamp
318.12/13/8108/07/8203/01/87358,600Incandescing Electric Lamp
393.10/05/8210/12/8206/28/87365,465Valve-Gear
354.06/03/8208/07/8206/28/87365,509Filament for Incandescent Electric Lamps
548.11/22/8611/29/8607/05/87365,978System of Electrical Distribution
173.01/28/8002/05/8008/30/87369,280System of Electrical Distribution
549.11/22/8612/06/8609/06/87369,439System of Electrical Distribution
556.12/10/8612/16/8609/06/87369,441System of Electrical Distribution
557.12/16/8612/22/8609/06/87369,442System of Electrical Distribution
558.12/16/8612/27/8609/06/87369,443System of Electrical Distribution
446.04/06/8304/17/8309/20/87370,123Electric Meter
448.04/12/8304/20/8309/20/87370,124Manufacture of Filaments for Incandescing Electric Lights
452.06/01/8306/07/8309/20/87370,125Electrical Transmission of Power
453.06/01/8306/07/8309/20/87370,126Electrical Transmission of Power
454.06/01/8306/07/8309/20/87370,127Electrical Transmission of Power
455.06/01/8306/07/8309/20/87370,128Electrical Transmission of Power
456.06/01/8306/07/8309/20/87370,129Electrical Transmission of Power
457.06/01/8306/07/8309/20/87370,130Electrical Transmission of Power
458.06/01/8306/07/8309/20/87370,131Electrical Transmission of Power
535.05/11/8605/15/8609/20/87370,132Telegraphy
561.12/21/8612/28/8611/22/87373,584Dynamo-Electric Machine
130.05/08/7705/14/7702/07/88377,374Telegraphy
566.06/30/8707/06/8702/07/88377,518Magnetic Separator
517.01/09/8510/14/8502/14/88378,044Telephone-Transmitter
312. 12/05/8112/09/8103/20/88379,770Incandescent Electric Lamp
335.02/28/8208/07/8203/20/88379,771Regulator for Dynamo-Electric Machines
352.05/22/8208/07/8203/20/88379,772System of Electrical Distribution
551.11/26/8612/06/8603/27/88379,944Commutator for Dynamo-Electric Machines
563.05/24/8706/13/8703/27/88380,100Pyromagnetic Motor
569.09/13/8709/23/8703/27/88380,101System of Electrical Distribution
570.09/14/8709/23/8703/27/88380,102System of Electrical Distribution
575.11/22/8711/26/8705/08/88382,414Burnishing Attachment for Phonographs
579.12/04/8712/27/8705/08/88382,415System of Electrical Distribution
578.11/29/8701/05/8805/08/88382,416Feed and Return Mechanism for Phonographs
584.01/30/8802/04/8805/08/88382,417Process of Making Phonogram-Blanks
586.02/20/8803/02/8805/08/88382,418Phonogram-Blank
590.03/03/8803/08/8805/08/88382,419Process of Duplicating Phonograms
580.12/05/8701/05/8805/08/88382,462Phonogram-Blank
550.11/24/8611/29/8606/19/88384,830Railway Signaling
573.11/05/8712/09/8706/26/88385,173System of Electrical Distribution
576.11/22/8711/26/8707/31/88386,974Phonograph
585.02/02/8802/06/8809/11/88389,369Incandescing Electric Lamp
587.02/20/8803/02/8810/02/88390,462Process of Making Carbon Filaments
502.07/16/8408/07/8410/23/88391,595System of Electric Lighting
506.09/24/8410/02/8410/23/88391,596Incandescent Electric Lamp
593.04/28/8805/07/8811/27/88393,462Process of Making Phonogram-Blanks
594.04/28/8805/07/8811/27/88393,463Machine for Making Phonogram-Blanks
595.04/28/8805/07/8811/27/88393,464Machine for Making Phonogram-Blanks
602.06/30/8807/07/8811/27/88393,465Method of Preparing Phonograph Recording-Surfaces
605.07/14/8807/17/8811/27/88393,466Phonograph-Recorder
606.07/14/8807/17/8812/04/88393,966Method of Recording and Reproducing Sounds
607.07/14/8807/17/8812/04/88393,967Method of Recording and Reproducing Sounds
625.10/31/8811/05/8812/04/88393,968Phonograph-Recorder
588.02/20/8803/02/8812/04/88394,105Phonograph-Recorder
589.02/20/8803/02/8812/04/88394,106Phonograph-Reproducer
435.02/13/8303/16/8312/25/88395,123Circuit-Controller for Dynamo-Electric Machines
391.09/16/8209/22/8201/08/89395,962Method of Manufacturing Electric Lamps
495.01/22/8404/05/8401/08/89395,963Incandescent-Lamp Filament
592.03/19/8803/29/8801/15/89396,356Magnetic Separator
619.09/19/8809/27/8802/05/89397,280Phonograph Recorder and Reproducer
615.08/31/8809/15/8802/12/89397,705Method of Winding Field-Magnets
620.09/29/8810/11/8802/12/89397,706Phonograph
451.05/08/8305/14/8302/26/89398,774Incandescent Electric Lamp
281.08/11/8108/25/8203/26/89400,317Ore-Separator
598.05/22/8806/07/8804/02/89400,646Phonograph Recorder and Reproducer
603.06/30/8807/07/8804/02/89400,647Phonograph
613.07/27/8807/30/8804/02/89400,648Phonogram-Blank
621.09/29/8810/11/8804/02/89400,649Method of Making Phonogram-Blanks
622.10/15/8810/17/8804/02/89400,650Method of Making Phonogram-Blanks
364.06/12/8208/07/8204/16/89401,486System of Electric Lighting
329.02/10/8208/07/8204/16/89401,646Incandescing Electric Lamp
285.08/24/8110/04/8106/11/89404,902Electrical-Distribution System
540.08/06/8608/11/8607/02/89406,130Manufacture of Incandescent Electric Lamps
533.01/28/8602/19/8607/09/89406,567Telephone
623.10/15/8810/17/8807/09/89406,568Phonograph
626.01/10/8901/19/8907/09/89406,569Phonogram-Blank
629.02/01/8902/11/8907/09/89406,570Phonograph
630.02/01/8902/11/8907/09/89406,571Process of Treating Phonogram-Blanks
631.02/01/8902/11/8907/09/89406,572Automatic Determining Device for Phonographs
632.02/01/8902/11/8907/09/89406,573Automatic Determining Device for Phonographs
633.02/01/8902/11/8907/09/89406,574Automatic Determining Device for Phonographs
634.02/01/8902/11/8907/09/89406,575Automatic Determining Device for Phonographs
637.02/01/8902/16/8907/09/89406,576Phonogram-Blank
235.01/19/8101/31/8107/09/89406,824Electric Meter
387.08/25/8209/13/8207/09/89406,825Electric Meter
404.10/19/8210/20/8209/17/89411,016Manufacture of Carbon Filaments
447.04/06/8304/17/8309/17/89411,017Carbonizing-Flask
536.07/15/8607/17/8609/17/89411,018Manufacture of Incandescent Electric Lamps
539.07/20/8607/29/8609/17/89411,019Manufacture of Incandescent Electric Lamps
552.11/26/8612/06/8609/17/89411,020Manufacture of Carbon Filaments
638.03/22/8903/25/8911/12/89414,759Phonogram-Blank
640.03/22/8903/30/8911/12/89414,760Phonograph
647.07/16/8908/10/8911/12/89414,761Phonogram-Blank
137.08/16/7708/22/7702/04/90420,594Quadruplex Telegraph
526.10/07/8510/23/8502/25/90422,072Telegraphy
528.11/12/8511/24/8502/25/90422,073Telegraphy
529.11/24/8502/19/8602/25/90422,074Telegraphy
508.10/21/8412/01/8403/04/90422,577Apparatus for Speaking-Telephones
511.12/09/8412/15/8403/04/90422,578Telephonic Repeater
512.12/09/8412/15/8403/04/90422,579Telephonic Repeater
643.06/15/8907/02/8903/11/90423,039Phonograph for Dolls or other Toys
272.06/03/8106/22/8104/15/90425,760Measurement of Electricity in Distribution Systems
489.11/20/8311/22/8304/15/90425,761Incandescent Lamp
591.03/03/8803/08/8804/15/90425,762Cut-Out for Incandescent Electric Lamps
282.08/20/8111/15/8104/15/90425,763Commutator for Dynamo-Electric Machines
644.06/15/8907/02/8904/29/90426,527Automatic Determining Device for Phonographs
611.07/14/8807/30/8806/17/90430,274Phonogram-Blank
617.09/12/8809/20/8806/17/90430,275Magnetic Separator
628.01/12/8901/15/8906/17/90430,276Phonograph
635.02/01/8902/11/8906/17/90430,277Automatic Determining Device for Phonographs
641.04/08/8904/10/8906/17/90430,278Phonograph
645.06/15/8907/02/8906/17/90430,279Voltaic Battery
648.07/20/8907/29/8906/17/90430,280Magnetic Separator
577.11/22/8711/26/8706/17/90430,570Phonogram-Blank
399.10/14/8210/20/8206/24/90430,932Manufacture of Incandescent Lamps
414.11/03/8211/09/8206/24/90430,933Filament for Incandescent Lamps
467.06/25/8306/29/8306/24/90430,934Electric-Lighting System
237.02/03/8102/21/8106/24/90431,018Dynamo or Magneto-Electric Machine

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
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