William F. M. J. Willems

Person

  • Keerbergen, BE

Patents Grantslast 30 patents

  • Information Patent Grant

    Sealable films

    • Patent number 4,921,749
    • Issue date May 1, 1990
    • Exxon Chemical Patents Inc.
    • Bernard L. L. Bossaert
    • B32 - LAYERED PRODUCTS