Wilhem E. Walles

Person

  • Freeland, MI, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Mold sulfonation system

    • Patent number 4,861,250
    • Issue date Aug 29, 1989
    • The Dow Chemical Company
    • Wilhem E. Walles
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL