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Stephen P. Porter

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  • Imlay City, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    One way anti-back flow valve
    • Patent number 6,837,265
    • Issue date Jan 4, 2005
    • Ligon Brothers Manufacturing Co.
    • Stephen P. Porter
    • A62 - LIFE-SAVING FIRE-FIGHTING
  • Information Patent Grant

    Apparatus and method for varying coefficients of friction in a vari...
    • Patent number 6,758,522
    • Issue date Jul 6, 2004
    • L&P Property Management Company
    • James T. Ligon
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    One way anti-backflow valve
    • Patent number 6,357,473
    • Issue date Mar 19, 2002
    • Ligon Brother Manufacturing Company
    • Stephen P. Porter
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Cable attachment for a lumbar support
    • Patent number 6,227,618
    • Issue date May 8, 2001
    • Schukra USA, Inc.
    • James T. Ligon
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Cable attachment for a lumbar support
    • Patent number 6,045,185
    • Issue date Apr 4, 2000
    • Textron Automotive Company, Inc.
    • James T. Ligon
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Cable attachment for a lumbar support
    • Patent number 5,984,407
    • Issue date Nov 16, 1999
    • McCord Winn Textron Inc.
    • James T. Ligon
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Lever actuator
    • Patent number 5,842,659
    • Issue date Dec 1, 1998
    • McCord Winn Textron Inc.
    • James T. Ligon
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Lever actuator
    • Patent number 5,681,005
    • Issue date Oct 28, 1997
    • Ligon Brothers Manufacturing Company
    • James T. Ligon
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Four-way lumbar support
    • Patent number 5,609,394
    • Issue date Mar 11, 1997
    • Ligon Brothers Manufacturing Company
    • James T. Ligon
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Variable apex back support
    • Patent number 5,518,294
    • Issue date May 21, 1996
    • Ligon Brothers Manufacturing Company
    • James T. Ligon
    • B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents