Patents by Inventor Glen R. Stephenson

Glen R. Stephenson 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).

  • Open cap
    Patent number: D392442
    Type: Grant
    Filed: April 10, 1997
    Date of Patent: March 24, 1998
    Inventors: Glen R. Stephenson, Susan M. Collins