Patents by Inventor Wilma A. Donalies

Wilma A. Donalies 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).

  • Trailer hitch locking device
    Patent number: D293650
    Type: Grant
    Filed: April 12, 1985
    Date of Patent: January 12, 1988
    Inventors: Richard W. Donalies, Wilma A. Donalies