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David W. Koehne

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  • Blaine, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Automatic electrostatic gun
    • Patent number D757214
    • Issue date May 24, 2016
    • Graco Minnesota Inc.
    • Mark C. Richter
    • D23 - Environmental heating and cooling

Patents Applicationslast 30 patents

  • Information Patent Application

    SPRAY TIP ASSEMBLY FOR ELECTROSTATIC SPRAY GUN
    • Publication number 20150273494
    • Publication date Oct 1, 2015
    • Graco Minnesota Inc.
    • David W. Koehne
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...