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Donald A. Sheff

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  • Mill Valley, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ergonomic bicycle handlebar and cycling systems
    • Patent number 11,919,601
    • Issue date Mar 5, 2024
    • CoEfficient Cycling LLC
    • Donald A. Sheff
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Ergonomic handlebar systems
    • Patent number 11,505,275
    • Issue date Nov 22, 2022
    • CoEfficient Cycling LLC
    • Don Sheff
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Cycling aero foil system
    • Patent number 11,198,323
    • Issue date Dec 14, 2021
    • CoEfficient Cycling LLC
    • Donald A. Sheff
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Ergonomic bicycle handlebar systems
    • Patent number 11,040,752
    • Issue date Jun 22, 2021
    • CoEfficient Cycling LLC
    • Don Sheff
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    Coefficient ergonomic bicycle handlebar systems
    • Patent number 10,392,073
    • Issue date Aug 27, 2019
    • Don Sheff
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS

Patents Applicationslast 30 patents

  • Information Patent Application

    ERGONOMIC BICYCLE HANDLEBAR AND CYCLING SYSTEMS
    • Publication number 20230011513
    • Publication date Jan 12, 2023
    • Coefficient Cycling LLC
    • Donald A. SHEFF
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Application

    CYCLING AERO FOIL SYSTEM
    • Publication number 20220176737
    • Publication date Jun 9, 2022
    • Donald A. SHEFF
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Ergonomic Handlebar Systems
    • Publication number 20220041246
    • Publication date Feb 10, 2022
    • Coefficient Cycling LLC
    • Don Sheff
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Application

    COEFFICIENT ERGONOMIC BICYCLE HANDLEBAR SYSTEMS
    • Publication number 20190375478
    • Publication date Dec 12, 2019
    • Don Sheff
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Application

    COEFFICIENT CYCLING AERO FOIL SYSTEM
    • Publication number 20190143747
    • Publication date May 16, 2019
    • Donald A. Sheff
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    COEFFICIENT ERGONOMIC BICYCLE HANDLEBAR SYSTEMS
    • Publication number 20180304956
    • Publication date Oct 25, 2018
    • Don Sheff
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS