TREA

John D. Vander Ark Jr.

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  • Kalamazoo, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Bag filter rim system
    • Patent number 5,989,421
    • Issue date Nov 23, 1999
    • Delaware Capital Formation, Inc.
    • Scott J. Davis
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter with axially and rotatably movable wiper
    • Patent number 5,569,383
    • Issue date Oct 29, 1996
    • Delaware Capital Formation, Inc.
    • John D. Vander Ark
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter with axially movable wiper
    • Patent number 5,527,462
    • Issue date Jun 18, 1996
    • Delaware Capital Formation, Inc.
    • Scott J. Davis
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter unit with linked valve actuators
    • Patent number 4,769,136
    • Issue date Sep 6, 1988
    • Delaware Capital Formation, Inc.
    • Ricky H. McCormick
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL