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Cecil M. Williamson

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  • Carrollton, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Self-calibrating capacitance gauge
    • Patent number 6,857,313
    • Issue date Feb 22, 2005
    • Rochester Gauges, Inc.
    • Cecil M. Williamson
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Linear positioning indicator
    • Patent number 5,907,273
    • Issue date May 25, 1999
    • Rochester Gauges, Inc.
    • Herbert G. Ross
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Linear positioning indicator
    • Patent number 5,812,048
    • Issue date Sep 22, 1998
    • Rochester Gauges, Inc.
    • Herbert G. Ross
    • G01 - MEASURING TESTING
  • Information Patent Grant

    liquid level gauge
    • Patent number D386997
    • Issue date Dec 2, 1997
    • Rochester Gauges, Inc.
    • Cecil M. Williamson
    • D10 - Measuring, testing, or signalling instruments
  • Information Patent Grant

    Gauge
    • Patent number D379316
    • Issue date May 20, 1997
    • Rochester Gauges, Inc.
    • Cecil M. Williamson
    • D10 - Measuring, testing, or signalling instruments
  • Information Patent Grant

    Floatless gauge with resistive/conductive polymer
    • Patent number 5,626,053
    • Issue date May 6, 1997
    • Rochester Gauges, Inc.
    • Cecil M. Williamson
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Floatless gauge with resistive/conductive polymer
    • Patent number 5,603,238
    • Issue date Feb 18, 1997
    • Rochester Gauges, Inc.
    • Cecil M. Williamson
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Floatless gauge with resistive/conductive polymer
    • Patent number 5,501,102
    • Issue date Mar 26, 1996
    • Rochester Gauges, Inc.
    • Cecil M. Williamson
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Gauge
    • Patent number D363888
    • Issue date Nov 7, 1995
    • Rochester Gauges, Inc.
    • Cecil M. Williamson
    • D10 - Measuring, testing, or signalling instruments
  • Information Patent Grant

    Magnetically driven gauge with voltage divider
    • Patent number 5,357,815
    • Issue date Oct 25, 1994
    • Rochester Gauges, Inc.
    • Cecil M. Williamson
    • F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS

Patents Applicationslast 30 patents

  • Information Patent Application

    SELF-CALIBRATING CAPACITANCE GAUGE
    • Publication number 20040187570
    • Publication date Sep 30, 2004
    • ROCHESTER GAUGES, INC.
    • Cecil M. Williamson
    • G01 - MEASURING TESTING