Philippe Westreich

Person

  • New Castle, PA, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Ammonia-free gaseous air filter

    • Patent number 8,293,333
    • Issue date Oct 23, 2012
    • 3M Innovative Properties Company
    • Lisa M. Croll
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL