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David H. Hopkins

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  • Escondido, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    System and method for flushing a membrane web using a vacuum roller
    • Patent number 6,634,192
    • Issue date Oct 21, 2003
    • PTI Advanced Filtration, Inc.
    • John A. Simonetti
    • B08 - CLEANING
  • Information Patent Grant

    Enhanced electro-deposition device and method
    • Patent number 6,436,213
    • Issue date Aug 20, 2002
    • PTI Advanced Filtration, Inc.
    • David H. Hopkins
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Grant

    Spiral wound separation device and method of making same
    • Patent number 5,266,195
    • Issue date Nov 30, 1993
    • Desalination Systems, Inc.
    • David H. Hopkins
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Multi-element housing
    • Patent number 5,238,563
    • Issue date Aug 24, 1993
    • Exxon Research and Engineering Company
    • Dean L. Smith
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Spiral-wound membrane cartridge
    • Patent number 4,906,372
    • Issue date Mar 6, 1990
    • Desalination Systems, Inc.
    • David H. Hopkins
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Spiral wound membrane
    • Patent number 4,842,736
    • Issue date Jun 27, 1989
    • Desalination Systems, Inc.
    • Donald T. Bray
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents