TREA

Ahtasham Ashraf

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  • Madison, WI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Vital solid state controller
    • Patent number 9,067,609
    • Issue date Jun 30, 2015
    • Central Signal, LLC
    • David Baldwin
    • B61 - RAILWAYS
  • Information Patent Grant

    Train detection
    • Patent number 9,026,283
    • Issue date May 5, 2015
    • Central Signal, LLC
    • David E. Baldwin
    • B61 - RAILWAYS
  • Information Patent Grant

    Vehicle detection system
    • Patent number 8,888,052
    • Issue date Nov 18, 2014
    • Central Signal, LLC
    • David Baldwin
    • B61 - RAILWAYS
  • Information Patent Grant

    Vehicle detection system
    • Patent number 8,517,316
    • Issue date Aug 27, 2013
    • Central Signal, LLC
    • David Baldwin
    • B61 - RAILWAYS
  • Information Patent Grant

    Vital solid state controller
    • Patent number 8,469,320
    • Issue date Jun 25, 2013
    • Central Signal, LLC
    • David Baldwin
    • B61 - RAILWAYS
  • Information Patent Grant

    Vehicle detection system
    • Patent number 8,157,219
    • Issue date Apr 17, 2012
    • Central Signal, LLC
    • Ahtasham Ashraf
    • B61 - RAILWAYS
  • Information Patent Grant

    Vital solid state controller
    • Patent number 8,028,961
    • Issue date Oct 4, 2011
    • Central Signal, LLC
    • Ahtasham Ashraf
    • B61 - RAILWAYS

Patents Applicationslast 30 patents

  • Information Patent Application

    VEHICLE DETECTION SYSTEM
    • Publication number 20130341468
    • Publication date Dec 26, 2013
    • Central Signal, LLC
    • David Baldwin
    • B61 - RAILWAYS
  • Information Patent Application

    VITAL SOLID STATE CONTROLLER
    • Publication number 20130277506
    • Publication date Oct 24, 2013
    • David Baldwin
    • B61 - RAILWAYS
  • Information Patent Application

    ROADWAY DETECTION
    • Publication number 20130063282
    • Publication date Mar 14, 2013
    • Central Signal, LLC
    • David E. Baldwin
    • B61 - RAILWAYS
  • Information Patent Application

    TRAIN DETECTION
    • Publication number 20130062474
    • Publication date Mar 14, 2013
    • Central Signal, LLC
    • David E. Baldwin
    • B61 - RAILWAYS
  • Information Patent Application

    VEHICLE DETECTION SYSTEM
    • Publication number 20120181390
    • Publication date Jul 19, 2012
    • Central Signal, LLC
    • Ahtasham Ashraf
    • B61 - RAILWAYS
  • Information Patent Application

    VITAL SOLID STATE CONTROLLER
    • Publication number 20120132758
    • Publication date May 31, 2012
    • Central Signal, LLC
    • Ahtasham Ashraf
    • B61 - RAILWAYS
  • Information Patent Application

    VITAL SOLID STATE CONTROLLER
    • Publication number 20080183306
    • Publication date Jul 31, 2008
    • Central Signal, LLC
    • Ahtasham Ashraf
    • B61 - RAILWAYS
  • Information Patent Application

    VEHICLE DETECTION SYSTEM
    • Publication number 20080169385
    • Publication date Jul 17, 2008
    • Ahtasham ASHRAF
    • B61 - RAILWAYS