William R. Keelen

Person

  • Boulder County, CO, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Two-shot injection molding

    • Patent number 4,460,534
    • Issue date Jul 17, 1984
    • International Business Machines Corporation
    • Russell W. Boehm
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL