David J. Andrews

Person

  • Rosemount, MN, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Filter assemblies with adhesive attachment systems

    • Patent number 6,419,729
    • Issue date Jul 16, 2002
    • 3M Innovative Properties Company
    • Dean R. Duffy
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Hard disk drive filter

    • Patent number 6,270,609
    • Issue date Aug 7, 2001
    • 3M Innovative Properties Company
    • Craig G. Markell
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL