Patents by Inventor Robert L. Umbarger

Robert L. Umbarger 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).

  • Electronic test meter housing
    Patent number: D264193
    Type: Grant
    Filed: April 24, 1980
    Date of Patent: May 4, 1982
    Assignee: Fox Valley Instrument Company
    Inventors: Hugh T. Greenlee, Roy P. Hess, Donald C. McKinnon, James R. Glasser, Robert L. Umbarger