Patents by Inventor Duane C. Oelberg

Duane C. Oelberg 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).

  • Urine meter
    Patent number: D296360
    Type: Grant
    Filed: May 6, 1985
    Date of Patent: June 21, 1988
    Assignee: Professional Medical Products, Inc.
    Inventor: Duane C. Oelberg