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Dave W. Smith

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  • Calgary, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Compact portable lift assembly
    • Patent number 11,724,913
    • Issue date Aug 15, 2023
    • ADAPTIVE CONCEPTS LTD.
    • David W Smith
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Compact portable lift assembly
    • Patent number 11,167,954
    • Issue date Nov 9, 2021
    • ADAPTIVE CONCEPTS LTD.
    • David W Smith
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Fully floating gangway
    • Patent number 6,678,910
    • Issue date Jan 20, 2004
    • Dave W. Smith
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Compact folding aircraft passenger ramp
    • Patent number 6,676,358
    • Issue date Jan 13, 2004
    • Dave W. Smith
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Utility cart
    • Patent number 6,264,219
    • Issue date Jul 24, 2001
    • Dave W. Smith
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Lightweight vertical lift device for windy conditions
    • Patent number 5,862,884
    • Issue date Jan 26, 1999
    • Adaptive Engineering, Ltd.
    • Dave W. Smith
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Wheelchair lift mechanism
    • Patent number 5,040,638
    • Issue date Aug 20, 1991
    • Adaptive Engineering Ltd.
    • Dave W. Smith
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Suspension arrangement for a tilting chair
    • Patent number 4,575,150
    • Issue date Mar 11, 1986
    • SimoDow Manufacturing Ltd.
    • David W. Smith
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents