TREA

Steven P. Heffner

Follow

Person

  • La Grange, IL, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Transit vehicle door operator and lock
    • Patent number 6,739,092
    • Issue date May 25, 2004
    • Westinghouse Air Brake Technologies Corporation
    • Steven P. Heffner
    • B61 - RAILWAYS
  • Information Patent Grant

    Tandem sliding door operator
    • Patent number 6,446,389
    • Issue date Sep 10, 2002
    • Westinghouse Air Brake Technologies Corporation
    • Steven P. Heffner
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Lock assembly
    • Patent number 6,139,073
    • Issue date Oct 31, 2000
    • Westinghouse Air Brake Company
    • Steven P. Heffner
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

  • Information Patent Application

    Drive system
    • Publication number 20040159047
    • Publication date Aug 19, 2004
    • WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION
    • Steven P. Heffner
    • B61 - RAILWAYS
  • Information Patent Application

    Tandem sliding door operator
    • Publication number 20020184823
    • Publication date Dec 12, 2002
    • Steven P. Heffner
    • B61 - RAILWAYS
  • Information Patent Application

    Drive system
    • Publication number 20020092236
    • Publication date Jul 18, 2002
    • Steven P. Heffner
    • B61 - RAILWAYS