William R. Downing

Person

  • Elyria, OH, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Precision pumping device

    • Patent number 6,234,771
    • Issue date May 22, 2001
    • Bayer Corporation
    • Glen A. Carey
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...