Patents by Inventor Doris Grigg

Doris Grigg 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).

  • Collapsible small animal pen
    Patent number: D661029
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: May 29, 2012
    Inventors: Sanford Grigg, Doris Grigg