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John Derrick Sirman

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  • Tonawanda, NY, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ceramic membrane structure and oxygen separation method
    • Patent number 6,514,314
    • Issue date Feb 4, 2003
    • Praxair Technology, Inc.
    • John Derrick Sirman
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Ionic conduction device
    • Patent number 6,203,676
    • Issue date Mar 20, 2001
    • Normalair-Garrett (Holdings) Limited
    • Robert John Phillips
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR

Patents Applicationslast 30 patents