Patents by Inventor Gretchen Riddell

Gretchen Riddell 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: D502987
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: March 15, 2005
    Assignee: Masco Corporation of Indiana
    Inventors: Seth A. Fritz, Gretchen Riddell, Judd A. Lord