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James J. Derham

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  • Ft. Washington, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Preparation of zinc polyphosphate in high PH solution
    • Patent number 5,378,401
    • Issue date Jan 3, 1995
    • Klenzoid, Inc.
    • James J. Derham
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Cooling tower system
    • Patent number 4,931,187
    • Issue date Jun 5, 1990
    • Klenzoid, Inc.
    • James J. Derham
    • F28 - HEAT EXCHANGE IN GENERAL