The Complete

Philo T. Farnsworth

U.S. Patent Collection

by Jim Bieberich, Patent Historian

  Patent # Type Co-Inventor Applied Granted Claims Pages Description
1 1,758,359 U -- 01/07/27 05/13/30 13 4 Electric Oscillator System
2 1,773,980 U -- TBD 08/26/30 18 TBD Television System
3 1,773,981 Ua -- 01/07/27 08/26/30 14 5 Television Receiving System
4 1,806,935 U -- 01/07/27 05/26/31 5 TBD Light Valve
5 1,844,949 U -- 04/25/28 02/16/32 30 TBD Synchronizing System
6 1,941,344 U -- 07/07/30 12/26/33 10 TBD Dissector Target
7 1,969,399 U -- 03/03/30 08/07/34 10 TBD Electron multiplier
8 1,970,036 U -- 01/29/28 08/14/34 14 TBD Photo Electric Apparatus
9 1,975,143 U -- 07/22/31 10/02/34 4 TBD Thermionic Vacuum Tube
10 1,986,330 Ua -- 04/17/28 01/01/35 13 TBD Electrical Discharge Apparatus
11 1,986,331 Ua -- 03/11/29 01/01/35 29 TBD Admittance Neutralizing Amplifier
12 2,026,379 Ua -- 12/04/30 12/31/35 11 TBD System Of Pulse Transmission
13 2,037,711 Ua -- 11/26/28 04/21/36 27 TBD Method And Apparatus For Television
14 2,051,372 Ua -- 07/14/31 08/18/36 15 TBD Scanning and synchronizing system
15 2,059,219 Ua -- 05/05/30 11/03/36 17 TBD Slope wave generator
16 2,059,683 Ua -- 04/03/33 11/03/36 6 TBD Scanning oscillator
17 2,066,070 Ua -- 05/07/35 12/29/36 5 TBD Incandescent light source
18 2,071,515 Ua -- 10/07/33 02/23/37 60 TBD Electron multiplying device
19 2,071,516 Ua -- 07/05/34 02/23/37 27 TBD Oscillation generator
20 2,071,517 Ua -- 05/07/35 02/23/37 19 TBD Multipactor phase control
21 2,085,742 Ua -- 06/14/30 07/06/37 32 TBD Electron image amplifier
22 2,087,683 Ua -- 04/26/33 07/20/37 11 TBD Image dissector
23 2,089,054 Ua -- 03/09/36 08/03/37 7 TBD Incandescent light source
24 2,091,439 Uadc -- 02/24/36 08/31/37 19 TBD Multipactor oscillator and amplifier
25 2,091,705 Ua -- 11/06/34 08/31/37 15 TBD Projection apparatus
26 2,098,000 Uac -- 05/31/32 11/2/37 12 5 Luminescent Screen
27 2,099,846 Ua -- 06/14/30 11/23/37 8 TBD Thermionic oscillograph
28 2,100,841 Ua -- 09/07/37 11/30/37 3 TBD Image a--lysis tube
29 2,100,842 Ua -- 09/14/35 11/30/37 6 5 Charge Storage Tube
30 2,104,253 Uad -- 02/08/1933 01/04/38 8 4 Luminescent Screen And Method Of Use
31 2,118,186 Ua -- 07/15/1935 05/24/38 4 INC Image Receiving Tube
32 2,124,057 Ua -- 11/02/1936 05/24/38 5 4 Beam Scanning Dissector
33 RE 20,759 Ua -- 05/18/1936 06/14/38 26 6 Electron Multiplier
34 2,128,580 Ua -- 08/18/1936 08/20/38 11 6 Means and Method of Operating Electron Multipliers
35 2,135,615 Ua -- 02/11/1936 11/08/38 3 6 Multipactor
36 2,137,528 Ua -- 01/27/1936 11/22/38 7 5 Multipactor Oscillator
37 2,139,813 Ua -- 03/24/1936 12/13/38 1 3 Secondary Emission Electrode
38 2,139,814 Ua -- &11/02/1936 12/13/38 2 3 Cathode Ray Tube
39 2,140,284 Ua -- 07/14/1931 12/13/38 15 6 Projecting Oscillight
40 2,140,285 Ua -- 03/22/1937 12/13/38 14 5 Multiplier Coupling System
41 2,140,695 Ua -- 07/06/1935 12/20/38 4 5 Charge Storage Dissector
42 2,140,832 Ua -- 05/16/1936 12/20/38 3 5 Means and Method of Controlling Electron Multipliers
43 2,141,836 Ua -- 09/07/1935 12/27/38 1 5 Charge Storage Dissector Tube
44 2,141,837 Ua -- 06/01/1936 12/27/38 3 3 Multistage Multipactor
45 2,141,838 Ua -- 03/22/1937 12/27/38 11 4 Split Cathode Multiplier Tube
46 2,107,782 Ua Lippincott, Donald K. 02/24/1936 02/08/38 4 7 Radiation Frequency Converter
47 2,109,289 Ua Somers, Frank J. 11/02/1936 02/22/38 3 4 High Power Projection Oscillograph
48 2,143,146 Ua Snyder, Richard L. 10/31/1936 01/10/39 7 5 Repeater
49 2,143,262 Ua -- 03/12/1935 01/10/39 3 9 Means for Electron Multiplication
50 2,149,045 Ua -- 04/26/1937 02/28/39 3 9 Cathode Ray Tube
51 2,155,478 Ua Bamford, Harry S. 05/07/1935 04/25/39 3 8 Means For Producing Incandescent Images
52 2,153,918 Ua -- 12/31/1935 04/11/39 4 6 Dissector Tube
53 2,155,479 Ua -- 07/11/1936 04/25/39 13 8 Means And Method For Transmitting Synchronizing Pulses In Television
54 2,156,807 Ua -- 04/26/1937 05/02/39 14 5 Detector
55 2,158,279 Ua -- 06/01/1936 05/16/39 2 3 Cathode Ray Tube
56 2,159,521 Ua -- 03/09/1936 05/23/39 6 4 Absorption Oscillator
57 2,161,620 Ua -- 04/26/1937 06/06/39 2 4 Two-Stage Electron Multiplier
58 2,168,768 Ua -- 04/15/1932 08/08/39 10 4 Television Method
59 2,172,152 Ua -- 02/21/1938 09/05/39 6 4 Radio Frequency Multipactor Amplifier
60 2,174,487 Ua -- 03/22/1937 09/26/39 5 4 Self-Energized Alternating Current Multiplier
61 2,174,488 Ua -- 04/26/1937 09/26/39 5 4 Oscillator
62 2,180,279 Ua -- 03/22/1937 11/14/39 6 4 Method Of Operating Electron Multipliers
63 2,184,910 Ua -- 11/04/1936 12/26/39 3 4 Cold Cathode Electron Discharge Tube
64 2,179,086 Ua Gardner, Bernard C. 09/27/1937 11/07/39 3 4 Means For Producing An Incandescent Image
65 2,179,996 Ua Snyder, Richard L. 11/09/1936 11/14/39 13 5 Electron Multiplier
66 2,189,358 Ua -- 03/22/1937 02/06/40 8 4 Diode Oscillator Tube Construction
67 2,203,048 Ua Snyder, Richard L. 06/13/1938 06/04/40 4 4 Shielded Anode Electron Multiplier
68 2,204,479 Ua -- 05/16/1936 06/11/40 10 7 Means And Method For Producing Electron Multiplication
69 RE 21,504 Ra -- 12/29/1939 07/09/40 11 6 Image dissector
70 2,213,070 Ua -- 07/11/1936 08/27/40 9 4 Image Source
71 2,214,077 Ua -- 02/10/1936 09/10/40 5 7 Scanning Current Generator
72 2,216,264 Ua -- 07/06/1935 10/01/40 6 6 Means And Method Of Image Analysis
73 2,216,266 Ua -- 03/22/1937 10/01/40 17 5 Two-Stage Oscillograph
74 2,216,265 U     10/01/40 TBD Image dissector
75 2,217,860 Ua -- 03/22/1937 10/15/40 12 8 Split Cathode Multiplier
76 2,221,374 Ua -- 03/22/1937 11/12/40 9 6 X-ray Projection Device
77 2,221,473 Ua -- 04/26/1937 11/12/40 6 10 Amplifier
78 2,223,001 U     11/26/40 TBD High efficiency amplifier
79 2,228,388 U     01/14/41 TBD Cathode ray amplifier
80 2,233,887 U     03/04/41 TBD Image Projector
82 2,233,888 Ua -- 07/06/1935 03/04/41 10 5 Charge Storage Amplifier
83 2,235,477 Ua -- 03/12/1938 03/18/41 2 5 Dissector Tube
84 2,239,149 Ua -- 01/05/1938 04/22/41 21 11 Electronic Amplifier
85 2,246,625 Ua -- 05/30/1930 06/24/41 42 10 Television Scanning And Synchronizing System
86 2,251,124 Ua -- 08/10/1935 07/29/41 1 4 Cathode Ray Amplifying Tube
87 2,254,140 Ua -- 09/10/1938 08/26/41 7 4 Image Analyzing System
88 2,257,942 Uac -- 04/05/1939 10/07/41 11 6 Image Amplifier
89 2,260,613 Ua -- 04/25/1939 10/28/41 8 6 Electron Multiplier
90 2,263,032 Ua -- 04/05/1939 11/18/41 2 4 Cold Cathode Electron Discharge Tube
91 2,264,630 Ua -- 03/11/1940 12/2/41 3 4 Dissector Tube
92 RE 22,009 Ra -- 07/05/1939 01/20/42 34 8 Electron Image Amplifier
93 2,274,194 Ua -- 02/23/1940 02/24/42 13 6 Apparatus For And Method of Electron Discharge Control
94 2,280,572 Uac -- 11/05/1934 04/21/42 9 8 Scanning Means And Method
95 2,286,076 Ua -- 04/03/1940 06/09/42 2 3 Electron Control Device
96 2,286,478 Ua -- 12/27/1940 06/16/42 4 3 Method of Manufacturing Cathode-Ray Tube Targets
97 2,287,607 Ua -- 03/05/1940 06/23/42 1 3 Rectifier
98 2,291,577 Ua -- 07/05/1941 07/28/42 3 5 Image amplifier
99 2,292,111 Ua -- 09/07/1940 08/04/42 1 5 Image Dissector
100 2,292,437 Ua -- 07/01/1935 08/11/42 25 11 Electron Image Amplifier
101 2,297,949 Ua -- 05/22/1941 10/06/42 8 5 Deflecting system
102 2,301,388 Ua -- 10/09/1940 11/10/42 2 3 Cathode Ray Signal Reproducing Tube
103 2,304,633 Ua -- 02/15/1940 12/08/42 13 6 Electric Recording And Reproducing System
104 2,311,981 Ua -- 07/25/1940 02/23/43 3 6 Electron Control Device
105 2,315,113 Ua -- 09/07/1940 03/30/43 6 4 Television Projection System
106 2,355,212 Ua -- 06/20/1942 08/08/44 9 4 Image Reproducing Device
107 2,641,723 U -- 07/29/1950 06/09/53 7 4 Television Image Analyzing Tube
108 2,754,449 Ua -- 11/25/1950 07/10/56 22 11 Cathode Ray Tube And System
109 2,830,111 Ua -- 10/06/1951 04/08/58 30 11 Storage Type Electron Tube Systems
110 2,921,228 Ua -- 05/18/1954 01/12/60 9 17 Color Television Apparatus
111 2,941,100 Ua -- 05/06/1957 06/14/60 9 4 Cathode Ray Tube
112 2,951,113 Ua -- 05/27/1954 08/30/60 5 5 Color Television Receiver
113 2,992,346 Ua -- 03/03/1954 07/11/61 4 4 Light Translating Device
114 2,992,358 Ua -- 03/03/1954 07/11/61 1 3 Radiation Translating Device
115 3,108,202 Ua -- 11/17/1954 10/22/63 9 5 Electron Image-Discharge Device
116 3,181,028 Ua -- 03/29/1962 04/27/65 16 10 Ion transport vacuum pump
117 3,201,640 Ua -- 03/07/1962 07/17/65 7 6 Electron gun in the form of a multipactor
118 3,240,421 Ua -- 01/24/1963 03/15/66 22 9 Ion transport pump
119 3,258,402 Ua -- 01/11/1962 06/28/66 26 38 Electric discharge device for producing interactions between nuclei
120 3,283,412 Ua -- 09/09/1964 11/08/66 15 8 Process and apparatus for drying and treating lumber
121 3,312,857 Ua -- 04/09/1963 04/04/67 31 14 Microwave amplifier utilizing multipaction to produce periodically bunched electrons
122 3,386,883 Ua -- 05/13/1966 06/04/68 19 35 Method and apparatus for producing nuclear fusion reactions
123 3,574,949 Uac -- 04/01/1969 04/13/71 14 8 Lumber drying

Notes:
Type: U=Utility R=Reissue D=Design T=Trademark, a=assignment, d=disclaimer, c=correction
Claims: The number legal claims inventor makes for protect his invention
Applied: The day the patent application was filed with the Patent Office. Other dates
for application renewals or divisions may exist and can be found in the patent
Granted: The day the Patent Office granted the patent



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