William H. Ward

Person

  • Costa Mesa, CA, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Ammonia injection in NOx control

    • Patent number 5,992,141
    • Issue date Nov 30, 1999
    • Kleen Air Systems, Inc.
    • Lester P. Berriman
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES