Patents by Inventor William Raatz

William Raatz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Reactor apparatus for treating water in iron removal system
    Patent number: 5725759
    Abstract: A system for removing iron from well water which, in addition to sources of air and water and an iron filter, has a reaction chamber wherein water containing dissolved iron is turbulently mixed with air and after oxidation of the water, excess air is removed through venting means located approximately midway between the ends of the reaction chamber.
    Type: Grant
    Filed: March 29, 1996
    Date of Patent: March 10, 1998
    Assignee: Ecowater Systems, Inc.
    Inventors: John L. Schlafer, Lori Nyland, William Raatz