Patents by Inventor James A. Mueller

James A. Mueller 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).

  • Waste treatment apparatus
    Patent number: 3956129
    Abstract: An apparatus for denitrifying waste water including means for: generating a fluidized bed containing denitrifying biota on a particulate carrier, metering a carbon source into the waste water and mechanically removing excess bacterial growth from the carrier at predetermined intervals.
    Type: Grant
    Filed: November 5, 1974
    Date of Patent: May 11, 1976
    Assignee: Ecolotrol, Inc.
    Inventors: John S. Jeris, Carl Beer, James A. Mueller