R. Douglas Hudgens

Person

  • Cookeville, TN, US

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

Patents Applicationslast 30 patents