TREA

Charles L. Matheson

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  • Cookeville, TN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Slow release coolant filter
    • Patent number RE37369
    • Issue date Sep 18, 2001
    • Fleetguard, Inc.
    • R. Douglas Hudgens
    • 210 - Liquid purification or separation
  • Information Patent Grant

    Slow release coolant filter
    • Patent number 5,772,873
    • Issue date Jun 30, 1998
    • Fleetguard, Inc.
    • R. Douglas Hudgens
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Slow release coolant filter
    • Patent number 5,662,799
    • Issue date Sep 2, 1997
    • Fleetguard, Inc.
    • R. Douglas Hudgens
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Plastic filter
    • Patent number 5,171,430
    • Issue date Dec 15, 1992
    • Fleetguard, Inc.
    • Donald W. Beach
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Valve assembly
    • Patent number 4,753,266
    • Issue date Jun 28, 1988
    • Cummins Engine Company, Inc.
    • Charles L. Matheson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Disposable air filter assembly and method of making same
    • Patent number 4,619,677
    • Issue date Oct 28, 1986
    • Cummins Engine Company, Inc.
    • Charles L. Matheson
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Valve assembly
    • Patent number 4,440,193
    • Issue date Apr 3, 1984
    • Cummins Engine Company, Inc.
    • Charles L. Matheson
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL