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Calvin John Llewelyn Williams

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  • Swansea, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Vehicle frame
    • Patent number D783726
    • Issue date Apr 11, 2017
    • Calvin John Llewelyn Williams
    • D21 - Games, toys, and sports goods
  • Information Patent Grant

    Vehicle frame with seat
    • Patent number D775282
    • Issue date Dec 27, 2016
    • Calvin John Llewelyn Williams
    • D21 - Games, toys, and sports goods

Patents Applicationslast 30 patents

  • Information Patent Application

    Human-Propellable Vehicle
    • Publication number 20170297648
    • Publication date Oct 19, 2017
    • Gower College Swansea
    • Calvin John Llewelyn Williams
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Application

    Human-Propellable Vehicle
    • Publication number 20170291657
    • Publication date Oct 12, 2017
    • Gower College Swansea
    • Calvin John Llewelyn Williams
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Application

    Human-Propellable Vehicle
    • Publication number 20170088231
    • Publication date Mar 30, 2017
    • Gower College Swansea
    • Calvin John Llewelyn Williams
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS