The Complete
Philo T. Farnsworth
U.S. Patent Collection
© 1998 - 2008 Mall USA, Inc.
by Jim Bieberich, Patent Historian
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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 | Ua | -- | 11/07/1927 | 05/13/1930 | 13 | 4 | Electric Oscillator System |
| 2 | 1,773,980 | Ua | -- | 01/07/1927 | 08/26/1930 | 18 | 13 | Television System |
| 3 | 1,773,981 | Ua | -- | 11/07/1927 | 08/26/1930 | 14 | 5 | Television Receiving System |
| 4 | 1,806,935 | Ua | -- | 11/07/1927 | 05/26/1931 | 5 | 4 | Light Valve |
| 5 | 1,844,949 | Uad | -- | 04/25/1928 | 02/16/1932 | 30 | 8 | Synchronizing System |
| 6 | 1,941,344 | Ua | -- | 07/07/1930 | 12/26/1933 | 10 | 3 | Dissector Target |
| 7 | 1,969,399 | Ua | -- | 03/03/1930 | 08/07/1934 | 10 | 4 | Electron Multiplier |
| 8 | 1,970,036 | Ua | -- | 01/09/1928 | 08/14/1934 | 14 | 4 | Photo Electric Apparatus |
| 9 | 1,975,143 | Ua | -- | 07/22/1931 | 10/02/1934 | 4 | 4 | Thermionic Vacuum Tube |
| 10 | 1,986,330 | Ua | -- | 04/17/1928 | 01/01/1935 | 13 | 6 | Electrical Discharge Apparatus |
| 11 | 1,986,331 | Ua | -- | 03/11/1929 | 01/01/1935 | 29 | 7 | Admittance Neutralizing Amplifier |
| 12 | 2,026,379 | Ua | -- | 12/04/1930 | 12/31/1935 | 11 | 10 | System Of Pulse Transmission |
| 13 | 2,037,711 | Ua | -- | 11/26/1928 | 04/21/1936 | 27 | 7 | Method And Apparatus For Television |
| 14 | 2,051,372 | Ua | -- | 07/14/1931 | 08/18/1936 | 15 | 6 | Scanning And Synchronizing System |
| 15 | 2,059,219 | Ua | Lubcke, Harry R. | 05/05/1930 | 11/03/1936 | 17 | 6 | Slope Wave Generator |
| 16 | 2,059,683 | Ua | -- | 04/03/1933 | 11/03/1936 | 6 | 6 | Scanning Oscillator |
| 17 | 2,066,070 | Ua | Bamford, Harry S. | 05/07/1935 | 12/29/1936 | 5 | 8 | Incandescent Light Source |
| 18 | 2,071,515 | Ua | -- | 10/07/1933 | 02/23/1937 | 60 | 14 | Electron Multiplying Device |
| 19 | 2,071,516 | Ua | -- | 07/05/1934 | 02/23/1937 | 27 | 9 | Oscillation Generator |
| 20 | 2,071,517 | Ua | -- | 05/07/1935 | 02/23/1937 | 19 | 5 | Multipactor Phase Control |
| 21 | 2,085,742 | Ua | -- | 06/14/1930 | 07/06/1937 | 32 | 8 | Electron Image Amplifier |
| 22 | 2,087,683 | Ua | -- | 04/26/1933 | 07/20/1937 | 11 | 6 | Image Dissector |
| 23 | 2,089,054 | Ua | -- | 03/09/1936 | 08/03/1937 | 7 | 4 | Incandescent Light Source |
| 24 | 2,091,439 | Uacd | -- | 02/24/1936 | 08/31/1937 | 19 | 7 | Multipactor Oscillator And Amplifier |
| 25 | 2,091,705 | Ua | -- | 11/06/1934 | 08/31/1937 | 15 | 7 | Projection Apparatus |
| 26 | 2,098,000 | Ua | Gardner, Bernard C. | 05/06/1936 | 11/02/1937 | 12 | 5 | Luminescent Screen |
| 27 | 2,099,846 | Ua | -- | 06/14/1930 | 11/23/1937 | 8 | 4 | Thermionic Oscillograph |
| 28 | 2,100,841 | Ua | -- | 09/07/1935 | 11/30/1937 | 3 | 5 | Image Analysis Tube |
| 29 | 2,100,842 | Ua | -- | 09/14/1935 | 11/30/1937 | 6 | 5 | Charge Storage Tube |
| 30 | 2,104,253 | Uad | -- | 02/08/1933 | 01/04/1938 | 8 | 4 | Luminescent Screen And Method Of Use |
| 31 | 2,107,782 | Ua | Lippincott, Donald K. | 02/24/1936 | 02/08/1938 | 4 | 7 | Radiation Frequency Converter |
| 32 | 2,109,289 | Ua | Somers, Frank J. | 11/02/1936 | 02/22/1938 | 3 | 4 | High Power Projection Oscillograph |
| 33 | 2,118,186 | Ua | -- | 07/15/1935 | 05/24/1938 | 4 | INC | Image Receiving Tube |
| 34 | RE 20,759 | Ua | -- | 05/18/1936 | 06/14/1938 | 26 | 6 | Electron Multiplier |
| 35 | 2,124,057 | Ua | -- | 11/02/1936 | 07/19/1938 | 5 | 4 | Beam Scanning Dissector |
| 36 | 2,128,580 | Ua | -- | 08/18/1936 | 08/30/1938 | 11 | 6 | Means and Method of Operating Electron Multipliers |
| 37 | 2,135,615 | Ua | -- | 02/11/1936 | 11/08/1938 | 3 | 6 | Multipactor |
| 38 | 2,137,528 | Ua | -- | 01/27/1936 | 11/22/1938 | 7 | 5 | Multipactor Oscillator |
| 39 | 2,139,813 | Ua | -- | 03/24/1936 | 12/13/1938 | 1 | 3 | Secondary Emission Electrode |
| 40 | 2,139,814 | Ua | -- | 11/02/1936 | 12/13/1938 | 2 | 3 | Cathode Ray Tube |
| 41 | 2,140,284 | Ua | -- | 07/14/1931 | 12/13/1938 | 15 | 6 | Projecting Oscillight |
| 42 | 2,140,285 | Ua | -- | 03/22/1937 | 12/13/1938 | 14 | 5 | Multiplier Coupling System |
| 43 | 2,140,695 | Ua | -- | 07/06/1935 | 12/20/1938 | 4 | 5 | Charge Storage Dissector |
| 44 | 2,140,832 | Ua | -- | 05/16/1936 | 12/20/1938 | 3 | 5 | Means and Method of Controlling Electron Multipliers |
| 45 | 2,141,836 | Ua | -- | 09/07/1935 | 12/27/1938 | 1 | 5 | Charge Storage Dissector Tube |
| 46 | 2,141,837 | Ua | -- | 06/01/1936 | 12/27/1938 | 3 | 3 | Multistage Multipactor |
| 47 | 2,141,838 | Ua | -- | 03/22/1937 | 12/27/1938 | 11 | 4 | Split Cathode Multiplier Tube |
| 48 | 2,143,146 | Ua | Snyder, Richard L. | 10/31/1936 | 01/10/1939 | 7 | 5 | Repeater |
| 49 | 2,143,262 | Ua | -- | 03/12/1935 | 01/10/1939 | 3 | 9 | Means for Electron Multiplication |
| 50 | 2,149,045 | Ua | -- | 04/26/1937 | 02/28/1939 | 3 | 9 | Cathode Ray Tube |
| 51 | 2,153,918 | Ua | -- | 12/31/1935 | 04/11/1939 | 4 | 6 | Dissector Tube |
| 52 | 2,155,478 | Ua | Bamford, Harry S. | 05/07/1935 | 04/25/1939 | 3 | 8 | Means For Producing Incandescent Images |
| 53 | 2,155,479 | Ua | -- | 07/11/1936 | 04/25/1939 | 13 | 8 | Means And Method For Transmitting Synchronizing Pulses In Television |
| 54 | 2,156,807 | Ua | -- | 04/26/1937 | 05/02/1939 | 14 | 5 | Detector |
| 55 | 2,158,279 | Ua | -- | 06/01/1936 | 05/16/1939 | 2 | 3 | Cathode Ray Tube |
| 56 | 2,159,521 | Ua | -- | 03/09/1936 | 05/23/1939 | 6 | 4 | Absorption Oscillator |
| 57 | 2,161,620 | Ua | -- | 04/26/1937 | 06/06/1939 | 2 | 4 | Two-Stage Electron Multiplier |
| 58 | 2,168,768 | Ua | -- | 04/15/1932 | 08/08/1939 | 10 | 4 | Television Method |
| 59 | 2,172,152 | Ua | -- | 02/21/1938 | 09/05/1939 | 6 | 4 | Radio Frequency Multipactor Amplifier |
| 60 | 2,174,487 | Ua | -- | 03/22/1937 | 09/26/1939 | 5 | 4 | Self-Energized Alternating Current Multiplier |
| 61 | 2,174,488 | Ua | -- | 04/26/1937 | 09/26/1939 | 5 | 4 | Oscillator |
| 62 | 2,179,086 | Ua | Gardner, Bernard C. | 09/20/1937 | 11/07/1939 | 3 | 4 | Means For Producing An Incandescent Image |
| 63 | 2,179,996 | Ua | Snyder, Richard L. | 11/09/1936 | 11/14/1939 | 13 | 5 | Electron Multiplier |
| 64 | 2,180,279 | Ua | -- | 03/22/1937 | 11/14/1939 | 6 | 4 | Method Of Operating Electron Multipliers |
| 65 | 2,184,910 | Ua | -- | 11/04/1936 | 12/26/1939 | 3 | 4 | Cold Cathode Electron Discharge Tube |
| 66 | 2,189,358 | Ua | -- | 03/22/1937 | 02/06/1940 | 8 | 4 | Diode Oscillator Tube Construction |
| 67 | 2,203,048 | Ua | Snyder, Richard L. | 06/13/1938 | 06/04/1940 | 4 | 4 | Shielded Anode Electron Multiplier |
| 68 | 2,204,479 | Ua | -- | 05/16/1936 | 06/11/1940 | 10 | 7 | Means And Method For Producing Electron Multiplication |
| 69 | RE 21,504 | Ra | -- | 12/29/1939 | 07/09/1940 | 11 | 6 | Image Dissector |
| 70 | 2,213,070 | Ua | -- | 07/11/1936 | 08/27/1940 | 9 | 4 | Image Source |
| 71 | 2,214,077 | Ua | -- | 02/10/1936 | 09/10/1940 | 5 | 7 | Scanning Current Generator |
| 72 | 2,216,264 | Ua | -- | 07/06/1935 | 10/01/1940 | 6 | 6 | Means And Method Of Image Analysis |
| 73 | 2,216,265 | Ua | -- | 08/18/1936 | 10/01/1940 | 4 | 3 | Image Dissector |
| 74 | 2,216,266 | Ua | -- | 03/22/1937 | 10/01/1940 | 17 | 5 | Two-Stage Oscillograph |
| 75 | 2,217,860 | Ua | -- | 03/22/1937 | 10/15/1940 | 12 | 8 | Split Cathode Multiplier |
| 76 | 2,221,374 | Ua | -- | 03/22/1937 | 11/12/1940 | 9 | 6 | X-ray Projection Device |
| 77 | 2,221,473 | Ua | -- | 04/26/1937 | 11/12/1940 | 6 | 10 | Amplifier |
| 78 | 2,223,001 | Ua | -- | 04/24/1939 | 11/26/1940 | 16 | 8 | High Efficiency Amplifier |
| 79 | 2,228,388 | Ua | -- | 07/06/1935 | 01/14/1941 | 8 | 5 | Cathode Ray Amplifier |
| 80 | 2,233,887 | Ua | -- | 06/13/1938 | 03/04/1941 | 3 | 5 | Image Projector |
| 81 | 2,233,888 | Ua | -- | 07/06/1935 | 03/04/1941 | 10 | 5 | Charge Storage Amplifier |
| 82 | 2,235,477 | Ua | -- | 03/12/1938 | 03/18/1941 | 2 | 5 | Dissector Tube |
| 83 | 2,239,149 | Ua | -- | 01/05/1938 | 04/22/1941 | 21 | 11 | Electronic Amplifier |
| 84 | 2,246,625 | Ua | -- | 05/05/1930 | 06/24/1941 | 42 | 10 | Television Scanning And Synchronizing System |
| 85 | 2,251,124 | Ua | -- | 08/10/1935 | 07/29/1941 | 1 | 4 | Cathode Ray Amplifying Tube |
| 86 | 2,254,140 | Ua | -- | 09/10/1938 | 08/26/1941 | 7 | 4 | Image Analyzing System |
| 87 | 2,257,942 | Uac | -- | 04/05/1939 | 10/07/1941 | 11 | 6 | Image Amplifier |
| 88 | 2,260,613 | Ua | -- | 04/25/1939 | 10/28/1941 | 8 | 6 | Electron Multiplier |
| 89 | 2,263,032 | Ua | -- | 04/05/1939 | 11/18/1941 | 2 | 4 | Cold Cathode Electron Discharge Tube |
| 90 | 2,264,630 | Ua | -- | 03/11/1940 | 12/02/1941 | 3 | 4 | Dissector Tube |
| 91 | RE 22,009 | Ra | -- | 07/05/1939 | 01/20/1942 | 34 | 8 | Electron Image Amplifier |
| 92 | 2,274,194 | Ua | -- | 02/23/1940 | 02/24/1942 | 13 | 6 | Apparatus For And Method of Electron Discharge Control |
| 93 | 2,280,572 | Uac | -- | 11/05/1934 | 04/21/1942 | 9 | 8 | Scanning Means And Method |
| 94 | 2,286,076 | Ua | -- | 04/03/1940 | 06/09/1942 | 2 | 3 | Electron Control Device |
| 95 | 2,286,478 | Ua | -- | 12/27/1940 | 06/16/1942 | 4 | 3 | Method of Manufacturing Cathode-Ray Tube Targets |
| 96 | 2,287,607 | Ua | -- | 03/05/1940 | 06/23/1942 | 1 | 3 | Rectifier |
| 97 | 2,291,577 | Ua | -- | 07/05/1941 | 07/28/1942 | 3 | 5 | Image Amplifier |
| 98 | 2,292,111 | Ua | -- | 09/07/1940 | 08/04/1942 | 1 | 5 | Image Dissector |
| 99 | 2,292,437 | Ua | -- | 07/01/1935 | 08/11/1942 | 25 | 11 | Electron Image Amplifier |
| 100 | 2,297,949 | Ua | -- | 05/22/1941 | 10/06/1942 | 8 | 5 | Deflecting system |
| 101 | 2,301,388 | Ua | -- | 10/09/1940 | 11/10/1942 | 2 | 3 | Cathode Ray Signal Reproducing Tube |
| 102 | 2,304,633 | Ua | -- | 02/15/1940 | 12/08/1942 | 13 | 6 | Electric Recording And Reproducing System |
| 103 | 2,311,981 | Ua | -- | 07/25/1940 | 02/23/1943 | 3 | 6 | Electron Control Device |
| 104 | 2,315,113 | Ua | -- | 09/07/1940 | 03/30/1943 | 6 | 4 | Television Projection System |
| 105 | 2,355,212 | Ua | -- | 06/20/1942 | 08/08/1944 | 9 | 4 | Image Reproducing Device |
| 106 | 2,641,723 | Ua | -- | 07/29/1950 | 06/09/1953 | 7 | 4 | Television Image Analyzing Tube |
| 107 | 2,754,449 | Ua | -- | 11/25/1950 | 07/10/1956 | 22 | 11 | Cathode Ray Tube And System |
| 108 | 2,830,111 | Ua | -- | 10/06/1951 | 04/08/1958 | 30 | 11 | Storage Type Electron Tube Systems |
| 109 | 2,921,228 | Ua | -- | 05/18/1954 | 01/12/1960 | 9 | 17 | Color Television Apparatus |
| 110 | 2,941,100 | Ua | -- | 03/06/1957 | 06/14/1960 | 9 | 4 | Cathode Ray Tube |
| 111 | 2,951,113 | Ua | -- | 05/27/1954 | 08/30/1960 | 5 | 5 | Color Television Receiver |
| 112 | 2,992,346 | Ua | -- | 03/03/1954 | 07/11/1961 | 4 | 4 | Light Translating Device |
| 113 | 2,992,358 | Ua | -- | 03/03/1954 | 07/11/1961 | 1 | 3 | Radiation Translating Device |
| 114 | 3,108,202 | Ua | -- | 11/17/1954 | 10/22/1963 | 9 | 5 | Electron Image-Discharge Device |
| 115 | 3,181,028 | Ua | -- | 03/29/1962 | 04/27/1965 | 16 | 10 | Ion Transport Vacuum Pump |
| 116 | 3,201,640 | Ua | -- | 03/07/1962 | 08/17/1965 | 7 | 6 | Electron Gun In The Form Of A Multipactor |
| 117 | 3,240,421 | Ua | -- | 01/24/1963 | 03/15/1966 | 22 | 9 | Ion Transport Pump |
| 118 | 3,258,402 | Ua | -- | 01/11/1962 | 06/28/1966 | 26 | 38 | Electric Discharge Device For Producing Interactions Between Nuclei |
| 119 | 3,283,412 | Ua | -- | 09/09/1964 | 11/08/1966 | 15 | 8 | Process And Apparatus For Drying And Treating Lumber |
| 120 | 3,312,857 | Ua | -- | 04/19/1963 | 04/04/1967 | 31 | 14 | Microwave Amplifier Utilizing Multipaction To Produce Periodically Bunched Electrons |
| 121 | 3,386,883 | Ua | -- | 05/13/1966 | 06/04/1968 | 19 | 35 | Method And Apparatus For Producing Nuclear-Fusion Reactions |
| 122 | 3,574,949 | Uac | -- | 04/01/1969 | 04/13/1971 | 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 to 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 |
| # Pages: | Page count includes correction and disclaimer pages |
| Red: | Patents that made this inventor famous |