TREA

using tubes

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  • CPC
  • H04B1/1623
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Parent Industries

HELECTRICITY H04Electric communication H04BTRANSMISSION H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00 Details of transmission systems not characterised by the medium used for transmission

Current Industry

H04B1/1623using tubes
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Electron tube amplification
    • Patent number 7,454,221
    • Issue date Nov 18, 2008
    • Hewlett-Packard Development Company, L.P.
    • James C. McKinnell
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Amplifier circuit having a floating input stage
    • Patent number 3,988,690
    • Issue date Oct 26, 1976
    • Tektronix, Inc.
    • Gary Charles Vance
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    3467778
    • Patent number 3,467,778
    • Issue date Sep 16, 1969
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3460049
    • Patent number 3,460,049
    • Issue date Aug 5, 1969
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3171083
    • Patent number 3,171,083
    • Issue date Feb 23, 1965
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3090917
    • Patent number 3,090,917
    • Issue date May 21, 1963
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3015695
    • Patent number 3,015,695
    • Issue date Jan 2, 1962
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    2951154
    • Patent number 2,951,154
    • Issue date Aug 30, 1960
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2931946
    • Patent number 2,931,946
    • Issue date Apr 5, 1960
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2912571
    • Patent number 2,912,571
    • Issue date Nov 10, 1959
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2858454
    • Patent number 2,858,454
    • Issue date Oct 28, 1958
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    2853611
    • Patent number 2,853,611
    • Issue date Sep 23, 1958
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2838616
    • Patent number 2,838,616
    • Issue date Jun 10, 1958
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2796520
    • Patent number 2,796,520
    • Issue date Jun 18, 1957
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2789235
    • Patent number 2,789,235
    • Issue date Apr 16, 1957
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2789266
    • Patent number 2,789,266
    • Issue date Apr 16, 1957
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2780736
    • Patent number 2,780,736
    • Issue date Feb 5, 1957
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2772371
    • Patent number 2,772,371
    • Issue date Nov 27, 1956
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2766332
    • Patent number 2,766,332
    • Issue date Oct 9, 1956
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2707250
    • Patent number 2,707,250
    • Issue date Apr 26, 1955
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2658117
    • Patent number 2,658,117
    • Issue date Nov 3, 1953
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2563740
    • Patent number 2,563,740
    • Issue date Aug 7, 1951
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2549833
    • Patent number 2,549,833
    • Issue date Apr 24, 1951
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2541050
    • Patent number 2,541,050
    • Issue date Feb 13, 1951
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2504829
    • Patent number 2,504,829
    • Issue date Apr 18, 1950
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2500504
    • Patent number 2,500,504
    • Issue date Mar 14, 1950
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2496021
    • Patent number 2,496,021
    • Issue date Jan 31, 1950
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2492196
    • Patent number 2,492,196
    • Issue date Dec 27, 1949
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2466250
    • Patent number 2,466,250
    • Issue date Apr 5, 1949
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2455395
    • Patent number 2,455,395
    • Issue date Dec 7, 1948
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents