TREA

John C. Greenwood

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  • Harlow, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Transducer
    • Patent number 4,942,766
    • Issue date Jul 24, 1990
    • STC PLC
    • John C. Greenwood
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Sensor device
    • Patent number 4,884,450
    • Issue date Dec 5, 1989
    • STC PLC
    • John C. Greenwood
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Resonator device
    • Patent number 4,813,271
    • Issue date Mar 21, 1989
    • STC PLC
    • John C. Greenwood
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Switch device
    • Patent number 4,691,117
    • Issue date Sep 1, 1987
    • International Standard Electric Company
    • John C. Greenwood
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Flexible hinge device
    • Patent number 4,660,418
    • Issue date Apr 28, 1987
    • International Standard Electric Corporation
    • John C. Greenwood
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Rotational movement
    • Patent number 4,655,091
    • Issue date Apr 7, 1987
    • International Standard Electric Corporation
    • John C. Greenwood
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Photodetector integrated circuit
    • Patent number 4,636,829
    • Issue date Jan 13, 1987
    • ITT Industries, Inc.
    • John C. Greenwood
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Resonator having optical feedback coupling
    • Patent number 4,567,451
    • Issue date Jan 28, 1986
    • International Standard Electric Corporation
    • John C. Greenwood
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Load sensors
    • Patent number 4,503,715
    • Issue date Mar 12, 1985
    • International Telephone & Telegraph Corporation
    • John C. Greenwood
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Electrical switch device with an integral semiconductor contact ele...
    • Patent number 4,480,162
    • Issue date Oct 30, 1984
    • International Standard Electric Corporation
    • John C. Greenwood
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Mechanical resonator arrangements
    • Patent number 4,305,298
    • Issue date Dec 15, 1981
    • ITT Industries, Inc.
    • John C. Greenwood
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Method of making transducer
    • Patent number 4,293,373
    • Issue date Oct 6, 1981
    • International Standard Electric Corporation
    • John C. Greenwood
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Mechanical resonator arrangements
    • Patent number 4,244,225
    • Issue date Jan 13, 1981
    • ITT Industries, Inc.
    • John C. Greenwood
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Transducer and method of making the same
    • Patent number 4,229,979
    • Issue date Oct 28, 1980
    • International Standard Electric Corporation
    • John C. Greenwood
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Mechanically biased semiconductor strain sensitive microphone
    • Patent number 4,182,937
    • Issue date Jan 8, 1980
    • International Standard Electric Corp.
    • John C. Greenwood
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Thin silicon devices
    • Patent number 4,131,985
    • Issue date Jan 2, 1979
    • ITT Industries, Inc.
    • John C. Greenwood
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Optical fiber switch
    • Patent number 4,121,884
    • Issue date Oct 24, 1978
    • International Standard Electric Corporation
    • John Christopher Greenwood
    • G02 - OPTICS
  • Information Patent Grant

    Fiber optic switch arrangement
    • Patent number 4,116,531
    • Issue date Sep 26, 1978
    • International Standard Electric Corporation
    • John C. Greenwood
    • G02 - OPTICS