Carl R. Douglass, III

Person

  • Willmar, MN, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Pipe rib gasket

    • Patent number D650053
    • Issue date Dec 6, 2011
    • Prinsco, Inc.
    • Carl R. Douglass, III
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Corrugation saddle gasket

    • Patent number D644306
    • Issue date Aug 30, 2011
    • Prinsco, Inc.
    • Carl R. Douglass, III
    • D23 - Environmental heating and cooling