Roald K. Berg

Person

  • Milwaukee, OR, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Water-based defoamer compositions

    • Patent number 4,032,473
    • Issue date Jun 28, 1977
    • Associated Chemists, Inc.
    • Roald K. Berg
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL