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Frank A. Walton

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  • Ft. Worth, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Self sealing piston ring
    • Patent number D573620
    • Issue date Jul 22, 2008
    • Dosmatic USA, Inc.
    • Frank A. Walton
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    One way valve gasket
    • Patent number D525685
    • Issue date Jul 25, 2006
    • Dosmatic USA, Inc.
    • Frank A. Walton
    • D23 - Environmental heating and cooling