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Richard C. Leveson

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  • Willowdale, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Analytical engine for gas chromatograph
    • Patent number 5,983,703
    • Issue date Nov 16, 1999
    • Perkin-Elmer (Canada) Ltd.
    • David A. Wylie
    • G01 - MEASURING TESTING
  • Information Patent Grant

    System for the detection of noxious contaminants in beverage and po...
    • Patent number 5,350,565
    • Issue date Sep 27, 1994
    • Photovac Centre, Inc.
    • Richard C. Leveson
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Method of making a fluid control valve
    • Patent number 5,197,192
    • Issue date Mar 30, 1993
    • Photovac Incorporated
    • David A. Wylie
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Fluid control valve arrangement
    • Patent number 5,176,359
    • Issue date Jan 5, 1993
    • Photovac International, Inc.
    • Richard C. Leveson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Fluid control valve
    • Patent number 5,083,742
    • Issue date Jan 28, 1992
    • Photovac Incorporated
    • David A. Wylie
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Selective photoionization gas chromatograph detector
    • Patent number 4,413,185
    • Issue date Nov 1, 1983
    • Her Majesty the Queen in right of Canada, as represented by the Minister of N...
    • Richard C. Leveson
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Photoionization detector
    • Patent number 4,398,152
    • Issue date Aug 9, 1983
    • Richard C. Leveson
    • G01 - MEASURING TESTING