Telegraphy and Telephony Patents

The following list contains the 186 patents Edison received concerning telegraphy and telephony. 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.

BatteriesCementElectric Light & PowerMining & Ore Milling
Miscellany Motion PicturesPhonographs & Sound Recording • Telegraphy & Telephony

No. ExecutedApplied IssuedPatentNo.Title
2.01/25/6902/17/6906/22/6991,527Printing-Telegraphs
3.08/17/6908/27/6911/09/6996,567Printing-Telegraph Apparatus
4.08/27/6909/04/6911/09/6996,681Automatic Electrical Switch for Telegraph Apparatus
5.09/16/6910/27/6904/26/70102,320Printing-Telegraph Apparatus (with Franklin L. Pope)
6.02/05/7004/11/7005/17/70103,035Electro-Motor Escapements
7.04/12/7004/14/7006/07/70103,924Printing-Telegraph Instruments (with Franklin L. Pope)
8.05/24/7005/27/7007/02/72128,608Printing-Telegraph Instruments (with Franklin L. Pope)
9.06/22/7006/28/7005/09/71114,656Telegraphic Transmitting Instruments
10.06/22/7006/28/7005/09/71114,658Electro-Magnets for Telegraph Instruments
11.06/29/7007/06/7001/24/71111,112Governors for Electro-Motors
12.09/06/7009/21/7005/09/71114,657Relay-Magnets for Telegraph Instruments
13.11/17/7011/22/7003/28/71113,033Printing-Telegraph Apparatus
14.01/10/7101/14/7103/28/71113,034Printing-Telegraph Apparatus
15.07/26/7108/04/7101/23/72123,005Telegraph Apparatus
16.07/26/7108/04/7101/23/72123,006Printing-Telegraphs
17.07/26/7108/04/7102/27/72123,984Telegraph Apparatus
18.08/12/7108/18/7103/19/72124,800Telegraphic Recording Instruments
19.08/16/7108/18/7112/05/71121,601Machinery for Perforating Paper for Telegraph Purposes
20.11/13/7111/18/7105/07/72126,535Printing-Telegraphs
22.01/03/7201/12/7205/07/72126,532Printing-Telegraphs
23.01/17/7201/24/7205/07/72126,531Printing-Telegraphs
24.01/17/7201/24/7205/07/72126,534Printing-Telegraphs
25.01/23/7201/30/7205/07/72126,528Type-Wheels for Printing-Telegraphs
26.01/23/7201/30/7205/07/72126,529Type-Wheels for Printing-Telegraphs
27.02/14/7202/19/7205/07/72126,530Printing-Telegraphs
28.02/14/7202/19/7205/07/72126,533Printing-Telegraphs
29.03/15/7203/22/7210/22/72132,456Apparatus for Perforating Paper for Telegraphic Use
30.04/10/7204/16/7210/22/72132,455Paper for Chemical Telegraphs etc.
32.04/26/7205/07/7206/18/72128,131Printing-Telegraphs
33.04/26/7205/07/7207/02/72128,604Printing-Telegraphs
34.04/26/7205/07/7207/02/72128,605Printing-Telegraphs
35.04/26/7205/07/7207/02/72128,606Printing-Telegraphs
36.04/26/7205/07/7207/02/72128,607Printing-Telegraphs
37.05/06/7206/06/7209/17/72131,334Rheotomes or Circuit-Directors
38.05/08/7206/06/7201/14/73134,867Automatic Telegraph Instruments
39.05/08/7206/06/7201/14/73134,868Electro-Magnetic Adjusters
40.05/09/7206/06/7208/27/72130,795Electro-Magnets
41.05/09/7206/06/7209/17/72131,342Printing-Telegraph Instruments
42.05/28/7206/06/7209/17/72131,341Printing-Telegraph Instruments
43.06/10/7207/09/7209/17/72131,337Printing-Telegraphs
44.06/10/7207/09/7209/17/72131,340Printing-Telegraphs
45.06/10/7207/09/7209/17/72131,343Transmitters and Circuits for Printing-Telegraphs
46.06/15/7207/09/7209/17/72131,335Printing-Telegraphs
47.06/15/7207/09/7209/17/72131,336Printing-Telegraphs
48.06/29/7207/09/7209/17/72131,338Printing-Telegraphs
49.06/29/7207/09/7209/17/72131,339Printing-Telegraphs
50.06/29/7207/09/7209/17/72131,344Unison-Stops for Printing-Telegraphs
51.10/16/7210/22/7201/14/73134,866Printing-Telegraph Instruments
52.10/16/7210/22/7205/13/73138,869Printing-Telegraphs
53.10/31/7211/05/7209/23/73142,999Galvanic Batteries
54.11/05/7211/09/7208/12/73141,772Circuits for Automatic or Chemical Telegraphs
55.11/09/7211/11/7202/04/73135,531Circuits for Chemical Telegraphs
56.11/26/7212/03/7201/27/74146,812Telegraph-Signal Boxes
57.12/12/7201/15/7308/12/73141,773Circuits for Automatic Telegraphs
58.12/12/7201/15/7308/12/73141,776Circuits for Automatic Telegraphs
59.12/12/7201/15/7305/12/74150,848Chemical or Automatic Telegraphs
60.01/21/7302/18/7305/20/73139,128Printing-Telegraphs
61.02/13/7302/18/7305/20/73139,129Printing-Telegraphs
62.02/13/7302/18/7307/01/73140,487Printing-Telegraphs
63.02/13/7302/18/7307/01/73140,489Circuits for Printing-Telegraphs
64.03/07/7303/13/7305/13/73138,870Printing-Telegraphs
65.03/07/7303/13/7308/12/73141,774Chemical Telegraphs
66.03/07/7303/13/7308/12/73141,775Perforators for Automatic Telegraphs
67.03/07/7303/13/7308/12/73141,777Relay-Magnets
68.03/07/7303/13/7309/09/73142,688Electrical Regulators for Transmitting-Instruments
69.03/07/7303/13/7311/17/74156,843Duplex Chemical Telegraphs
70.03/24/7307/29/7302/10/74147,312Perforators for Automatic Telegraphy
71.03/24/7307/29/7302/10/74147,314Circuits for Chemical Telegraphs
72.03/24/7307/29/7305/12/74150,847Receiving Instruments for Chemical Telegraphs
73.04/22/7304/26/7304/27/75162,633Duplex Telegraphs
74.04/23/7305/16/7307/01/73140,488Printing-Telegraphs
75.04/23/7306/27/7302/24/74147,917Duplex Telegraphs
76.04/23/7306/27/7305/12/74150,846Telegraph-Relays
77.04/23/7307/29/7302/10/74147,311Electric Telegraphs
78.04/23/7307/29/7302/10/74147,313Chemical Telegraphs
79.04/23/7307/29/7303/02/75160,405Adjustable Electro-Magnets for Relays, etc.
80.08/25/7309/02/7305/26/74151,209Automatic Telegraphy and Perforators Therefor
81.09/29/7306/01/7403/02/75160,402Solutions for Chemical Telegraph-Paper
82.09/29/7306/01/7403/02/75160,404Solutions for Chemical Telegraph-Paper
83.10/14/7306/01/7403/09/75160,580Solutions for Chemical Telegraph-Paper
84.10/29/7306/01/7403/02/75160,403Solutions for Chemical Telegraph-Paper
85.04/02/7405/11/7409/08/74154,788District Telegraph Signal-Boxes
86.05/22/7406/01/7409/21/75168,004Printing-Telegraphs
87.06/01/7407/25/7408/17/75166,859Chemical Telegraphy
88.06/01/7407/25/7408/17/75166,860Chemical Telegraphy
89.06/01/7407/25/7408/17/75166,861Chemical Telegraphy
90.08/07/7408/13/7401/19/75158,787Telegraph Apparatus
91.08/07/7401/15/7501/18/76172,305Automatic Roman-Character Telegraphs
92.08/07/7401/15/7502/22/76173,718Automatic Telegraphy
93.08/14/7401/15/7510/05/75168,465Solutions for Chemical Telegraphs
94.08/19/7409/01/7405/30/76178,221Duplex Telegraphs
95.08/19/7409/01/7405/30/76178,222Duplex Telegraphs
96.08/19/7409/01/7405/30/76178,223Duplex Telegraphs
97.08/19/7409/01/7408/08/76180,858Duplex Telegraphs
98.08/19/7409/01/7409/03/78207,723Duplex Telegraphs
99.08/19/7409/01/7408/09/92480,567Duplex Telegraph
100.12/14/7412/28/7409/03/78207,724Duplex Telegraphs
101.01/18/7501/26/7509/28/75168,242Transmitters and Receivers for Automatic Telegraphs
102.01/18/7501/26/7509/28/75168,243Automatic Telegraphs
103.01/18/7501/26/7510/05/75168,385Duplex Telegraphs
104.01/18/7501/26/7510/05/75168,466Solutions for Chemical Telegraphs
105.01/18/7501/26/7510/05/75168,467Recording-Points for Chemical Telegraphs
106.01/18/7501/27/7510/02/77195,751Automatic Telegraphs
107.01/19/7501/27/7510/02/77195,752Automatic Telegraphs
108.02/11/7502/16/7512/21/75171,273Telegraph Apparatus
109.02/24/7503/23/7511/16/75169,972Electric-Signalling Instruments
110.02/24/7503/23/7510/22/78209,241Quadruplex-Telegraph Repeaters
112.04/03/7604/06/7612/11/77198,088Telephonic Telegraphs
113.04/03/7604/06/7612/11/77198,089Telephonic or Electro-Harmonic Telegraphs
114.05/09/7605/16/7610/10/76182,996Acoustic Telegraphs
115.05/09/7605/16/7601/16/77186,330Acoustic Electric Telegraphs
116.05/09/7605/16/7612/11/77198,087Telephonic Telegraphs
117.05/09/7605/18/7601/23/77186,548Telegraphic Alarm and Signal Apparatus
118.08/16/7608/31/7612/19/76185,507Electro-Harmonic Multiplex Telegraphs
119.08/26/7609/18/7603/05/78200,993Acoustic Telegraphs
120. 08/26/7609/30/7612/07/80235,142Acoustic Telegraph
121.10/30/7611/01/7602/05/78200,032Synchronous Movements for Electric Telegraphs
122.10/30/7611/11/7603/05/78200,994Automatic-Telegraph Perforator and Transmitter
123.02/03/7703/26/7703/25/79213,554Automatic Telegraphs
127.04/18/7704/27/7705/03/92474,230Speaking-Telegraph
129.05/08/7705/14/7707/22/79217,781Sextuplex Telegraphs
130.05/08/7705/14/7702/07/88377,374Telegraphy
131.05/31/7706/02/7705/26/91452,913Sextuplex Telegraph
132.05/31/7706/02/7706/02/91453,601Sextuplex Telegraph
133.05/31/7706/02/7701/16/94512,872Sextuplex Telegraph
134.07/09/7707/20/7705/03/92474,231Speaking-Telegraph
135.07/16/7707/20/7704/30/78203,014Speaking-Telegraphs
136.07/16/7707/20/7709/24/78208,299Speaking-Telephones
137.08/16/7708/22/7702/04/90420,594Quadruplex Telegraph
138.08/16/7708/28/7704/30/78203,015Speaking-Telegraphs
139.08/31/7709/05/7703/07/93492,789Speaking-Telegraph
140.12/08/7712/13/7704/30/78203,013Speaking-Telegraphs
141.12/08/7712/13/7704/30/78203,018Telephones or Speaking-Telegraphs
143.02/13/7802/21/7804/30/78203,019Circuits for Acoustic or Telephonic Telegraphs
145.02/28/7803/04/7804/30/78203,017Telephone Call-Signal
146.02/28/7803/07/7804/30/78203,016Speaking-Telephones
149.11/08/7811/11/7812/09/79222,390Carbon-Telephones
150.11/11/7811/14/7807/22/79217,782Duplex Telegraphs
162.03/24/7903/31/7911/25/79221,957Telephones
166.07/17/7907/25/7908/31/80231,704Electro-Chemical Receiving-Telephone
167.08/01/7908/06/7910/17/82266,022Telephone
168.08/04/7908/06/7901/17/82252,442Telephone
192.07/29/8008/09/8008/19/90434,585Telegraph-Relay
213.10/21/8011/11/8002/22/81238,098Magneto Signal Apparatus
222.12/11/8012/14/8003/22/81239,154Relay for Telegraphs
280.07/26/8112/06/8107/19/92479,184Fac-simile Telegraph
287.09/07/8110/17/8105/09/82257,677Telephone
288.09/07/8110/17/8110/17/82266,021Telephone
336.03/30/8210/06/8202/13/83272,034Telephone
337.03/30/8210/06/8203/27/83274,576Transmitting-Telephone
338.03/30/8210/06/8203/27/83274,577Telephone
483.11/10/8311/13/8303/02/86337,254Telephone
497.02/09/8403/19/8403/17/85314,115Chemical Stock Quotation Telegraph
507.09/24/8412/15/8410/14/90438,304Electric Signaling Apparatus
508.10/21/8412/01/8403/04/90422,577Apparatus for Speaking-Telephones
509.12/03/8412/15/8410/27/85329,030Telephone
510.12/09/8412/15/8404/27/86340,707Telephonic Repeater
511.12/09/8412/15/8403/04/90422,578Telephonic Repeater
512.12/09/8412/15/8403/04/90422,579Telephonic Repeater
513.12/19/8401/12/8504/27/86340,708Electrical Signaling Apparatus
514.12/19/8401/12/8508/10/86347,097Electrical Signaling Apparatus
515.12/31/8410/14/8507/12/92478,743Telephone-Repeater
516.01/02/8510/14/8504/27/86340,709Telephone-Circuit
517.01/09/8510/14/8502/14/88378,044Telephone-Transmitter
518.01/12/8510/14/8508/24/86348,114Electrode for Telephone-Transmitters
520.03/27/8504/07/8510/05/86350,234System of Railway Signaling
521.03/27/8504/07/8511/22/92486,634System of Railway Signaling
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
525.05/14/8505/23/8512/29/91465,971Means for Transmitting Signals Electrically
526.10/07/8510/23/8502/25/90422,072Telegraphy
527.10/07/8510/23/8509/30/90437,422Telegraphy
528.11/12/8511/24/8502/25/90422,073Telegraphy
529.11/24/8502/19/8602/25/90422,074Telegraphy
530.11/30/8502/19/8609/02/90435,689Telegraphy
531.12/22/8502/19/8610/14/90438,306Telephone
532.12/28/8501/13/8610/05/86350,235Railway-Telegraphy
533.01/28/8602/19/8607/09/89406,567Telephone
534.02/17/8602/18/8605/03/92474,232Speaking-Telegraph
535.05/11/8605/15/8609/20/87370,132Telegraphy
538.07/15/8607/19/8603/24/91448,779Telegraph
550.11/24/8611/29/8606/19/88384,830Railway Signaling
875.09/14/0509/15/0512/19/111,012,250Recording-Telephone
918.06/18/0706/20/0701/19/09909,877Telegraphy
1042.10/23/1810/26/1808/08/221,425,183Transmitter
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