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Doug Zimmerer

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  • Winfield, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ball valve
    • Patent number 11,767,921
    • Issue date Sep 26, 2023
    • Val-Matic Valve & Manufacturing Corporation
    • Doug Zimmerer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    COMBINATION AIR VALVE
    • Publication number 20240410485
    • Publication date Dec 12, 2024
    • Doug Zimmerer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    BALL VALVE
    • Publication number 20220065360
    • Publication date Mar 3, 2022
    • Val-Matic Valve & Manufacturing Corporation
    • Doug Zimmerer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...