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Theodore A. Burnham

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  • Winchester, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Blowing agent introduction into hopper of polymer foam processing
    • Patent number 11,559,927
    • Issue date Jan 24, 2023
    • Trexel, Inc.
    • Samuel Edward Dix
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Blowing agent delivery system
    • Patent number 6,926,507
    • Issue date Aug 9, 2005
    • Trexel, Inc.
    • Juan C. Cardona
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method and apparatus for microcellular polymer extrusion
    • Patent number 6,884,377
    • Issue date Apr 26, 2005
    • Trexel, Inc.
    • Theodore A. Burnham
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Valve for injection molding
    • Patent number 6,659,757
    • Issue date Dec 9, 2003
    • Trexel, Inc.
    • Roland Y. Kim
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Blowing agent metering system
    • Patent number 6,616,434
    • Issue date Sep 9, 2003
    • Trexel, Inc.
    • Theodore A. Burnham
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Polymer processing system and apparatus
    • Patent number 6,602,064
    • Issue date Aug 5, 2003
    • Trexel, Inc.
    • Ligin Chen
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method and apparatus for microcellular polymer extrusion
    • Patent number 6,284,810
    • Issue date Sep 4, 2001
    • Trexel, Inc.
    • Theodore A. Burnham
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents