TREA

Johannes van Leeuwen

Follow

Person

  • Ames, IA, US
People

Patents Applicationslast 30 patents

  • Information Patent Application

    Bypass flow and ozone proportion method and system
    • Publication number 20060243672
    • Publication date Nov 2, 2006
    • Johannes van Leeuwen
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Application

    Ozone retention method and system
    • Publication number 20060021951
    • Publication date Feb 2, 2006
    • NUTECH O3
    • Johannes van Leeuwen
    • B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT