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David R. Gilbert

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  • Loulsville, KY, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Water-powered sump pump
    • Patent number 11,441,578
    • Issue date Sep 13, 2022
    • Zoeller Pump Company, LLC
    • Charles P. Carroll
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Grinder pump basin system
    • Patent number 9,352,327
    • Issue date May 31, 2016
    • Zoeller Pump Company, LLC
    • William L. Schmidt
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Grinder pump basin system
    • Patent number 9,004,381
    • Issue date Apr 14, 2015
    • Zoeller Pump Company, LLC
    • William L. Schmidt
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...

Patents Applicationslast 30 patents

  • Information Patent Application

    GRINDER PUMP BASIN SYSTEM
    • Publication number 20130270375
    • Publication date Oct 17, 2013
    • William L. Schmidt
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Application

    GRINDER PUMP BASIN SYSTEM
    • Publication number 20120085688
    • Publication date Apr 12, 2012
    • ZOELLER PUMP COMPANY, LLC
    • William L. Schmidt
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Waste Pumping System
    • Publication number 20100319116
    • Publication date Dec 23, 2010
    • William Schmidt
    • E03 - WATER SUPPLY SEWERAGE