TREA

Tubes specially designed to act as oscillator with positive grid and retarding field

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  • CPC
  • H01J25/68
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Parent Industries

HELECTRICITY H01Electric elements H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS H01J25/00Transit-time tubes

Current Industry

H01J25/68Tubes specially designed to act as oscillator with positive grid and retarding field
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Patents Grantslast 30 patents

  • Information Patent Grant

    Device for generating THz radiation with free electron beams
    • Patent number 8,648,319
    • Issue date Feb 11, 2014
    • Hans W. P. Koops
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    High power microwave generator
    • Patent number 4,751,429
    • Issue date Jun 14, 1988
    • The United States of America as represented by the United States Department o...
    • Roger W. Minich
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    3197670
    • Patent number 3,197,670
    • Issue date Jul 27, 1965
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2953181
    • Patent number 2,953,181
    • Issue date Sep 20, 1960
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    2794931
    • Patent number 2,794,931
    • Issue date Jun 4, 1957
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2651738
    • Patent number 2,651,738
    • Issue date Sep 8, 1953
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2616043
    • Patent number 2,616,043
    • Issue date Oct 28, 1952
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2571676
    • Patent number 2,571,676
    • Issue date Oct 16, 1951
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2514425
    • Patent number 2,514,425
    • Issue date Jul 11, 1950
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2507739
    • Patent number 2,507,739
    • Issue date May 16, 1950
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2476162
    • Patent number 2,476,162
    • Issue date Jul 12, 1949
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2460789
    • Patent number 2,460,789
    • Issue date Feb 1, 1949
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2454330
    • Patent number 2,454,330
    • Issue date Nov 23, 1948
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2425657
    • Patent number 2,425,657
    • Issue date Aug 12, 1947
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2342263
    • Patent number 2,342,263
    • Issue date Feb 22, 1944
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2337214
    • Patent number 2,337,214
    • Issue date Dec 21, 1943
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2329540
    • Patent number 2,329,540
    • Issue date Sep 14, 1943
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2326801
    • Patent number 2,326,801
    • Issue date Aug 17, 1943
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2296355
    • Patent number 2,296,355
    • Issue date Sep 22, 1942
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2288812
    • Patent number 2,288,812
    • Issue date Jul 7, 1942
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2262858
    • Patent number 2,262,858
    • Issue date Nov 18, 1941
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2254264
    • Patent number 2,254,264
    • Issue date Sep 2, 1941
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2227376
    • Patent number 2,227,376
    • Issue date Dec 31, 1940
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2216940
    • Patent number 2,216,940
    • Issue date Oct 8, 1940
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2211859
    • Patent number 2,211,859
    • Issue date Aug 20, 1940
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2206923
    • Patent number 2,206,923
    • Issue date Jul 9, 1940
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2196392
    • Patent number 2,196,392
    • Issue date Apr 9, 1940
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2190712
    • Patent number 2,190,712
    • Issue date Feb 20, 1940
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    2184556
    • Patent number 2,184,556
    • Issue date Dec 26, 1939
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    2173910
    • Patent number 2,173,910
    • Issue date Sep 26, 1939
    • H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents