Edison's Patents - The Edison Papers

Edison's U.S. Patents, 1868-1879

The following list contains the 170 patents for which Edison executed an application before 1880. 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

No.	Executed	Applied	Issued	Patent No.	Title
1.	10/13/68	10/28/68	06/01/69	90,646	Electrographic Vote-Recorder
2.	01/25/69	02/17/69	06/22/69	91,527	Printing-Telegraphs
3.	08/17/69	08/27/69	11/09/69	96,567	Printing-Telegraph Apparatus
4.	08/27/69	09/04/69	11/09/69	96,681	Automatic Electrical Switch for Telegraph Apparatus
5.	09/16/69	10/27/69	04/26/70	102,320	Printing-Telegraph Apparatus (with Franklin L. Pope)
6.	02/05/70	04/11/70	05/17/70	103,035	Electro-Motor Escapements
7.	04/12/70	04/14/70	06/07/70	103,924	Printing-Telegraph Instruments (with Franklin L. Pope)
8.	05/24/70	05/27/70	07/02/72	128,608	Printing-Telegraph Instruments (with Franklin L. Pope)
9.	06/22/70	06/28/70	05/09/71	114,656	Telegraphic Transmitting Instruments
10.	06/22/70	06/28/70	05/09/71	114,658	Electro-Magnets for Telegraph Instruments
11.	06/29/70	07/06/70	01/24/71	111,112	Governors for Electro-Motors
12.	09/06/70	09/21/70	05/09/71	114,657	Relay-Magnets for Telegraph Instruments
13.	11/17/70	11/22/70	03/28/71	113,033	Printing-Telegraph Apparatus
14.	01/10/71	01/14/71	03/28/71	113,034	Printing-Telegraph Apparatus
15.	07/26/71	08/04/71	01/23/72	123,005	Telegraph Apparatus
16.	07/26/71	08/04/71	01/23/72	123,006	Printing-Telegraphs
17.	07/26/71	08/04/71	02/27/72	123,984	Telegraph Apparatus
18.	08/12/71	08/18/71	03/19/72	124,800	Telegraphic Recording Instruments
19.	08/16/71	08/18/71	12/05/71	121,601	Machinery for Perforating Paper for Telegraph Purposes
20.	11/13/71	11/18/71	05/07/72	126,535	Printing-Telegraphs
21.	11/13/71	11/18/71	12/10/72	133,841	Type-Writing Machines
22.	01/03/72	01/12/72	05/07/72	126,532	Printing-Telegraphs
23.	01/17/72	01/24/72	05/07/72	126,531	Printing-Telegraphs
24.	01/17/72	01/24/72	05/07/72	126,534	Printing-Telegraphs
25.	01/23/72	01/30/72	05/07/72	126,528	Type-Wheels for Printing-Telegraphs
26.	01/23/72	01/30/72	05/07/72	126,529	Type-Wheels for Printing-Telegraphs
27.	02/14/72	02/19/72	05/07/72	126,530	Printing-Telegraphs
28.	02/14/72	02/19/72	05/07/72	126,533	Printing-Telegraphs
29.	03/15/72	03/22/72	10/22/72	132,456	Apparatus for Perforating Paper for Telegraphic Use
30.	04/10/72	04/16/72	10/22/72	132,455	Paper for Chemical Telegraphs etc.
31.	04/18/72	04/25/72	11/12/72	133,019	Electrical Printing-Machines
32.	04/26/72	05/07/72	06/18/72	128,131	Printing-Telegraphs
33.	04/26/72	05/07/72	07/02/72	128,604	Printing-Telegraphs
34.	04/26/72	05/07/72	07/02/72	128,605	Printing-Telegraphs
35.	04/26/72	05/07/72	07/02/72	128,606	Printing-Telegraphs
36.	04/26/72	05/07/72	07/02/72	128,607	Printing-Telegraphs
37.	05/06/72	06/06/72	09/17/72	131,334	Rheotomes or Circuit-Directors
38.	05/08/72	06/06/72	01/14/73	134,867	Automatic Telegraph Instruments
39.	05/08/72	06/06/72	01/14/73	134,868	Electro-Magnetic Adjusters
40.	05/09/72	06/06/72	08/27/72	130,795	Electro-Magnets
41.	05/09/72	06/06/72	09/17/72	131,342	Printing-Telegraph Instruments
42.	05/28/72	06/06/72	09/17/72	131,341	Printing-Telegraph Instruments
43.	06/10/72	07/09/72	09/17/72	131,337	Printing-Telegraphs
44.	06/10/72	07/09/72	09/17/72	131,340	Printing-Telegraphs
45.	06/10/72	07/09/72	09/17/72	131,343	Transmitters and Circuits for Printing-Telegraphs
46.	06/15/72	07/09/72	09/17/72	131,335	Printing-Telegraphs
47.	06/15/72	07/09/72	09/17/72	131,336	Printing-Telegraphs
48.	06/29/72	07/09/72	09/17/72	131,338	Printing-Telegraphs
49.	06/29/72	07/09/72	09/17/72	131,339	Printing-Telegraphs
50.	06/29/72	07/09/72	09/17/72	131,344	Unison-Stops for Printing-Telegraphs
51.	10/16/72	10/22/72	01/14/73	134,866	Printing-Telegraph Instruments
52.	10/16/72	10/22/72	05/13/73	138,869	Printing-Telegraphs
53.	10/31/72	11/05/72	09/23/73	142,999	Galvanic Batteries
54.	11/05/72	11/09/72	08/12/73	141,772	Circuits for Automatic or Chemical Telegraphs
55.	11/09/72	11/11/72	02/04/73	135,531	Circuits for Chemical Telegraphs
56.	11/26/72	12/03/72	01/27/74	146,812	Telegraph-Signal Boxes
57.	12/12/72	01/15/73	08/12/73	141,773	Circuits for Automatic Telegraphs
58.	12/12/72	01/15/73	08/12/73	141,776	Circuits for Automatic Telegraphs
59.	12/12/72	01/15/73	05/12/74	150,848	Chemical or Automatic Telegraphs
60.	01/21/73	02/18/73	05/20/73	139,128	Printing-Telegraphs
61.	02/13/73	02/18/73	05/20/73	139,129	Printing-Telegraphs
62.	02/13/73	02/18/73	07/01/73	140,487	Printing-Telegraphs
63.	02/13/73	02/18/73	07/01/73	140,489	Circuits for Printing-Telegraphs
64.	03/07/73	03/13/73	05/13/73	138,870	Printing-Telegraphs
65.	03/07/73	03/13/73	08/12/73	141,774	Chemical Telegraphs
66.	03/07/73	03/13/73	08/12/73	141,775	Perforators for Automatic Telegraphs
67.	03/07/73	03/13/73	08/12/73	141,777	Relay-Magnets
68.	03/07/73	03/13/73	09/09/73	142,688	Electrical Regulators for Transmitting-Instruments
69.	03/07/73	03/13/73	11/17/74	156,843	Duplex Chemical Telegraphs
70.	03/24/73	07/29/73	02/10/74	147,312	Perforators for Automatic Telegraphy
71.	03/24/73	07/29/73	02/10/74	147,314	Circuits for Chemical Telegraphs
72.	03/24/73	07/29/73	05/12/74	150,847	Receiving Instruments for Chemical Telegraphs
73.	04/22/73	04/26/73	04/27/75	162,633	Duplex Telegraphs
74.	04/23/73	05/16/73	07/01/73	140,488	Printing-Telegraphs
75.	04/23/73	06/27/73	02/24/74	147,917	Duplex Telegraphs
76.	04/23/73	06/27/73	05/12/74	150,846	Telegraph-Relays
77.	04/23/73	07/29/73	02/10/74	147,311	Electric Telegraphs
78.	04/23/73	07/29/73	02/10/74	147,313	Chemical Telegraphs
79.	04/23/73	07/29/73	03/02/75	160,405	Adjustable Electro-Magnets for Relays, etc.
80.	08/25/73	09/02/73	05/26/74	151,209	Automatic Telegraphy and Perforators Therefor
81.	09/29/73	06/01/74	03/02/75	160,402	Solutions for Chemical Telegraph-Paper
82.	09/29/73	06/01/74	03/02/75	160,404	Solutions for Chemical Telegraph-Paper
83.	10/14/73	06/01/74	03/09/75	160,580	Solutions for Chemical Telegraph-Paper
84.	10/29/73	06/01/74	03/02/75	160,403	Solutions for Chemical Telegraph-Paper
85.	04/02/74	05/11/74	09/08/74	154,788	District Telegraph Signal-Boxes
86.	05/22/74	06/01/74	09/21/75	168,004	Printing-Telegraphs
87.	06/01/74	07/25/74	08/17/75	166,859	Chemical Telegraphy
88.	06/01/74	07/25/74	08/17/75	166,860	Chemical Telegraphy
89.	06/01/74	07/25/74	08/17/75	166,861	Chemical Telegraphy
90.	08/07/74	08/13/74	01/19/75	158,787	Telegraph Apparatus
91.	08/07/74	01/15/75	01/18/76	172,305	Automatic Roman-Character Telegraphs
92.	08/07/74	01/15/75	02/22/76	173,718	Automatic Telegraphy
93.	08/14/74	01/15/75	10/05/75	168,465	Solutions for Chemical Telegraphs
94.	08/19/74	09/01/74	05/30/76	178,221	Duplex Telegraphs
95.	08/19/74	09/01/74	05/30/76	178,222	Duplex Telegraphs
96.	08/19/74	09/01/74	05/30/76	178,223	Duplex Telegraphs
97.	08/19/74	09/01/74	08/08/76	180,858	Duplex Telegraphs
98.	08/19/74	09/01/74	09/03/78	207,723	Duplex Telegraphs
99.	08/19/74	09/01/74	08/09/92	480,567	Duplex Telegraph
100.	12/14/74	12/28/74	09/03/78	207,724	Duplex Telegraphs
101.	01/18/75	01/26/75	09/28/75	168,242	Transmitters and Receivers for Automatic Telegraphs
102.	01/18/75	01/26/75	09/28/75	168,243	Automatic Telegraphs
103.	01/18/75	01/26/75	10/05/75	168,385	Duplex Telegraphs
104.	01/18/75	01/26/75	10/05/75	168,466	Solutions for Chemical Telegraphs
105.	01/18/75	01/26/75	10/05/75	168,467	Recording-Points for Chemical Telegraphs
106.	01/18/75	01/27/75	10/02/77	195,751	Automatic Telegraphs
107.	01/19/75	01/27/75	10/02/77	195,752	Automatic Telegraphs
108.	02/11/75	02/16/75	12/21/75	171,273	Telegraph Apparatus
109.	02/24/75	03/23/75	11/16/75	169,972	Electric-Signalling Instruments
110.	02/24/75	03/23/75	10/22/78	209,241	Quadruplex-Telegraph Repeaters
111.	03/07/76	03/13/76	08/08/76	180,857	Autographic Printing
112.	04/03/76	04/06/76	12/11/77	198,088	Telephonic Telegraphs
113.	04/03/76	04/06/76	12/11/77	198,089	Telephonic or Electro-Harmonic Telegraphs
114.	05/09/76	05/16/76	10/10/76	182,996	Acoustic Telegraphs
115.	05/09/76	05/16/76	01/16/77	186,330	Acoustic Electric Telegraphs
116.	05/09/76	05/16/76	12/11/77	198,087	Telephonic Telegraphs
117.	05/09/76	05/18/76	01/23/77	186,548	Telegraphic Alarm and Signal Apparatus
118.	08/16/76	08/31/76	12/19/76	185,507	Electro-Harmonic Multiplex Telegraphs
119.	08/26/76	09/18/76	03/05/78	200,993	Acoustic Telegraphs
120.	08/26/76	09/30/76	12/07/80	235,142	Acoustic Telegraph
121.	10/30/76	11/01/76	02/05/78	200,032	Synchronous Movements for Electric Telegraphs
122.	10/30/76	11/11/76	03/05/78	200,994	Automatic-Telegraph Perforator and Transmitter
123.	02/03/77	03/26/77	03/25/79	213,554	Automatic Telegraphs
124.	03/03/77	03/26/77	06/25/78	205,370	Pneumatic Stencil-Pens
125.	04/18/77	04/23/77	11/06/77	196,747	Stencil-Pens
126.	04/18/77	04/23/77	05/07/78	203,329	Perforating Pens
127.	04/18/77	04/27/77	05/03/92	474,230	Speaking-Telegraph
128.	05/08/77	05/10/77	08/03/80	230,621	Addressing-Machine
129.	05/08/77	05/14/77	07/22/79	217,781	Sextuplex Telegraphs
130.	05/08/77	05/14/77	02/07/88	377,374	Telegraphy
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
133.	05/31/77	06/02/77	01/16/94	512,872	Sextuplex Telegraph
134.	07/09/77	07/20/77	05/03/92	474,231	Speaking-Telegraph
135.	07/16/77	07/20/77	04/30/78	203,014	Speaking-Telegraphs
136.	07/16/77	07/20/77	09/24/78	208,299	Speaking-Telephones
137.	08/16/77	08/22/77	02/04/90	420,594	Quadruplex Telegraph
138.	08/16/77	08/28/77	04/30/78	203,015	Speaking-Telegraphs
139.	08/31/77	09/05/77	03/07/93	492,789	Speaking-Telegraph
140.	12/08/77	12/13/77	04/30/78	203,013	Speaking-Telegraphs
141.	12/08/77	12/13/77	04/30/78	203,018	Telephones or Speaking-Telegraphs
142.	12/15/77	12/24/77	02/19/78	200,521	Phonograph or Speaking Machines
143.	02/13/78	02/21/78	04/30/78	203,019	Circuits for Acoustic or Telephonic Telegraphs
144.	02/28/78	03/04/78	03/26/78	201,760	Speaking-Machines
145.	02/28/78	03/04/78	04/30/78	203,017	Telephone Call-Signal
146.	02/28/78	03/07/78	04/30/78	203,016	Speaking-Telephones
147.	08/31/78	11/27/78	12/10/78	210,767	Vocal Engines
148.	10/05/78	10/14/78	04/22/79	214,636	Electric Lights
149.	11/08/78	11/11/78	12/09/79	222,390	Carbon-Telephones
150.	11/11/78	11/14/78	07/22/79	217,782	Duplex Telegraphs
151.	11/14/78	11/18/78	04/22/79	214,637	Thermal Regulators for Electric Lights
152.	12/03/78	12/09/78	08/05/79	218,166	Magneto-Electric Machines
153.	12/03/78	12/09/78	08/26/79	218,866	Electric Lighting Apparatus
154.	12/03/78	12/09/78	09/16/79	219,628	Electric Lights
155.	12/04/78	12/09/78	04/01/84	295,990	Type-Writer
156.	12/31/78	01/10/79	08/05/79	218,167	Apparatus for Electric Lights
157.	01/23/79	02/03/79	02/10/80	224,329	Electric-Lighting Apparatus
158.	01/28/79	02/03/79	05/04/80	227,228	Electric Light
159.	02/06/79	02/10/79	05/04/80	227,227	Electric Light
160.	03/10/79	03/17/79	02/17/80	224,665	Autographic Stencils for Printing
161.	03/19/79	03/29/79	05/18/80	227,679	Phonograph
162.	03/24/79	03/31/79	11/25/79	221,957	Telephones
163.	04/12/79	04/21/79	05/04/80	227,229	Electric Light
164.	04/21/79	05/12/79	09/19/82	264,643	Magneto-Electric Machine
165.	07/07/79	07/10/79	09/09/79	219,393	Dynamo-Electric Machine
166.	07/17/79	07/25/79	08/31/80	231,704	Electro-Chemical Receiving-Telephone
167.	08/01/79	08/06/79	10/17/82	266,022	Telephone
168.	08/04/79	08/06/79	01/17/82	252,442	Telephone
169.	09/04/79	09/10/79	12/23/79	222,881	Magneto-Electric Machines
170.	11/01/79	11/04/79	01/27/80	223,898	Electric Lamp