Patents by Inventor Larry D. Couch

Larry D. Couch 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).

  • Sine gauge
    Patent number: D303356
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: September 12, 1989
    Inventor: Larry D. Couch