Patents by Inventor Raymond G. Shield

Raymond G. Shield 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).

  • Digital depth meter
    Patent number: D281148
    Type: Grant
    Filed: April 25, 1983
    Date of Patent: October 29, 1985
    Assignee: Signet Scientific Co.
    Inventors: Rebecca A. Highstreet, Raymond G. Shield, Nancy A. Jensen
  • Digital depth meter
    Patent number: D281309
    Type: Grant
    Filed: April 25, 1983
    Date of Patent: November 12, 1985
    Assignee: Signet Scientific Co.
    Inventors: Rebecca A. Highstreet, Raymond G. Shield, Nancy A. Jensen