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William Hopkins

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  • Sarnia, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Filled elastomeric butyl compounds
    • Patent number 7,279,518
    • Issue date Oct 9, 2007
    • Lanxess Inc.
    • William Hopkins
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Filled elastomeric butyl compounds with improved scorch safety
    • Patent number 7,015,265
    • Issue date Mar 21, 2006
    • Bayer Inc.
    • Rui Resendes
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Silica-filled elastomeric compounds
    • Patent number 6,992,122
    • Issue date Jan 31, 2006
    • Bayer Inc.
    • Rui Resendes
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Rubber composition
    • Patent number 6,737,476
    • Issue date May 18, 2004
    • Bayer Inc.
    • William Hopkins
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Halogenated butyl rubber graft copolymers
    • Patent number 5,264,494
    • Issue date Nov 23, 1993
    • Polysar Rubber Corporation
    • Chai H. Ho
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents