Patents by Inventor Dennis E. Olson

Dennis E. Olson 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).

  • Patent number: D321214
    Type: Grant
    Filed: August 16, 1989
    Date of Patent: October 29, 1991
    Inventors: Dennis E. Olson, Sharon L. Olson