TREA

Gerald F. Varnum

Follow

Person

  • Marshalltown, IA, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Pressure sensor
    • Patent number 4,691,573
    • Issue date Sep 8, 1987
    • Fisher Controls International, Inc.
    • Gerald F. Varnum
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Positioner having user-adjustable dynamic response
    • Patent number 4,509,403
    • Issue date Apr 9, 1985
    • Fisher Controls International, Inc.
    • George W. Gassman
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Pneumatic controller
    • Patent number 4,453,559
    • Issue date Jun 12, 1984
    • Fisher Controls Company, Inc.
    • Gerald F. Varnum
    • G05 - CONTROLLING REGULATING