Patents by Inventor John W. Howery

John W. Howery 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).

  • Chemical and particulate filtration system/apparatus
    Patent number: 5626761
    Abstract: A chemical and particulate filtration system and method are disclosed. The method includes contacting a liquid to be filtered, in a reverse flow manner, with a molecular absorption filter media and a submicronic filter media. The system/method removes, as a particulate, dissolved organic and inorganic contaminants, pollutants and particulate from a liquid. The removal of contaminants is evidenced by a color change in the filter media.
    Type: Grant
    Filed: December 17, 1993
    Date of Patent: May 6, 1997
    Assignee: Poly-Bio-Marine, Inc.
    Inventors: Kenneth A. Howery, John W. Howery