TREA

David J. B. Perkins

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  • Liverpool, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Mandrel means
    • Patent number 5,192,390
    • Issue date Mar 9, 1993
    • Bridgestone/Firestone Inc.
    • David J. B. Perkins
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Flexible reinforced polymeric material and a method of forming such...
    • Patent number 5,098,768
    • Issue date Mar 24, 1992
    • Bridgestone/Firestone Inc.
    • Eric Holroyd
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Manufacture of flexible reinforced polymeric article
    • Patent number 5,053,098
    • Issue date Oct 1, 1991
    • Bridgestone/Firestone Inc.
    • David J. B. Perkins
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Reinforced polymeric article
    • Patent number 5,045,376
    • Issue date Sep 3, 1991
    • Bridgestone/Firestone, Inc.
    • Eric Holroyd
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Manufacture of ply fabric for reinforced rubber articles
    • Patent number 4,783,230
    • Issue date Nov 8, 1988
    • W & A Bates Limited a British Company
    • David J. B. Perkins
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Reinforced structures
    • Patent number 4,409,059
    • Issue date Oct 11, 1983
    • W & A Bates Limited
    • Eric Holroyd
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Reinforced structures
    • Patent number 4,401,493
    • Issue date Aug 30, 1983
    • W & A Bates Limited
    • George K. Bailey
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Reinforced articles
    • Patent number 4,399,187
    • Issue date Aug 16, 1983
    • W & A Bates Limited
    • Eric Holroyd
    • B60 - VEHICLES IN GENERAL