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Donald H. Powers Jr.

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  • Needham, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electrically conductive flame retardant materials and methods of ma...
    • Patent number 5,674,606
    • Issue date Oct 7, 1997
    • Parker-Hannifin Corporation
    • Donald H. Powers
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Electromagnetic shielding
    • Patent number 4,769,280
    • Issue date Sep 6, 1988
    • Chomerics, Inc.
    • Donald H. Powers
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Electromagnetic shielding
    • Patent number 4,507,359
    • Issue date Mar 26, 1985
    • Chomerics, Inc.
    • Donald H. Powers
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Electromagnetic shielding
    • Patent number 4,434,541
    • Issue date Mar 6, 1984
    • Chomerics, Inc.
    • Donald H. Powers
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...