TREA

Donald Holder

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  • Troy, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Two stage sewage grinder pump
    • Patent number 7,357,341
    • Issue date Apr 15, 2008
    • Crane Pumps & Systems, Inc.
    • Gregory J. Gutwein
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Pond system and related pump
    • Patent number 6,821,416
    • Issue date Nov 23, 2004
    • Aquascape Designs, Inc.
    • David R. Kelly
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    Two stage sewage grinder pump
    • Publication number 20070069050
    • Publication date Mar 29, 2007
    • CRANE PUMPS & SYSTEMS, INC.
    • Gregory J. Gutwein
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...