TREA

using combinations of frequencies

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Industry

  • CPC
  • H04Q9/12
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Parent Industries

HELECTRICITY H04Electric communication H04QSELECTING H04Q9/00Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Current Industry

H04Q9/12using combinations of frequencies
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Whole-space inversion using phase correction method for multi-frequ...
    • Patent number 10,061,051
    • Issue date Aug 28, 2018
    • Baker Hughes, a GE company, LLC
    • Babak Kouchmeshky
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Communication and charging circuitry for a single-coil implantable...
    • Patent number 9,070,507
    • Issue date Jun 30, 2015
    • Boston Scientific Neuromodulation Corporation
    • Vasily Dronov
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Communication and charging circuitry for a single-coil implantable...
    • Patent number 8,666,504
    • Issue date Mar 4, 2014
    • Boston Scientific Neuromodulation Corporation
    • Vasily Dronov
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Transmitter tolerant to crystal variations
    • Patent number 6,677,862
    • Issue date Jan 13, 2004
    • SchlumbergerSema Inc.
    • Thomas Sean Houlihane
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Interrogated transponder system
    • Patent number 4,079,414
    • Issue date Mar 14, 1978
    • Skiatron Electronics & Television Corporation
    • Herbert W. Sullivan
    • G08 - SIGNALLING
  • Information Patent Grant

    Dual tone selector with answerback signalling
    • Patent number 4,064,367
    • Issue date Dec 20, 1977
    • Westinghouse Air Brake Company
    • Larry V. O'Malley
    • G08 - SIGNALLING
  • Information Patent Grant

    3878322
    • Patent number 3,878,322
    • Issue date Apr 15, 1975
    • G08 - SIGNALLING
  • Information Patent Grant

    3757035
    • Patent number 3,757,035
    • Issue date Sep 4, 1973
    • G08 - SIGNALLING
  • Information Patent Grant

    3743936
    • Patent number 3,743,936
    • Issue date Jul 3, 1973
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3717844
    • Patent number 3,717,844
    • Issue date Feb 20, 1973
    • G08 - SIGNALLING
  • Information Patent Grant

    3715723
    • Patent number 3,715,723
    • Issue date Feb 6, 1973
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3699523
    • Patent number 3,699,523
    • Issue date Oct 17, 1972
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3676580
    • Patent number 3,676,580
    • Issue date Jul 11, 1972
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3634824
    • Patent number 3,634,824
    • Issue date Jan 11, 1972
    • G08 - SIGNALLING
  • Information Patent Grant

    3588826
    • Patent number 3,588,826
    • Issue date Jun 28, 1971
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3587077
    • Patent number 3,587,077
    • Issue date Jun 22, 1971
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3506964
    • Patent number 3,506,964
    • Issue date Apr 14, 1970
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3495219
    • Patent number 3,495,219
    • Issue date Feb 10, 1970
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3396370
    • Patent number 3,396,370
    • Issue date Aug 6, 1968
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2900621
    • Patent number 2,900,621
    • Issue date Aug 18, 1959
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2864943
    • Patent number 2,864,943
    • Issue date Dec 16, 1958
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents