TREA

Andrew J. Holt

Follow

Person

  • Des Moines, IA, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Multi-stage filter
    • Patent number 6,632,352
    • Issue date Oct 14, 2003
    • Nursery Pro, Inc.
    • Andrew J. Holt
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

  • Information Patent Application

    Multi-stage filter
    • Publication number 20030010694
    • Publication date Jan 16, 2003
    • Andrew J. Holt
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL