Patents by Inventor Donald R. Simmons

Donald R. Simmons 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).

  • Cam gear holding and turning wrench
    Patent number: 6978703
    Abstract: The cam gear holding and turning wrench includes first and second arms which are slidably attached one to the other and which include angled extensions that have transverse rods projecting therefrom so that the spacing of the rods may be adjusted while maintaining the region between the extensions accessible.
    Type: Grant
    Filed: April 6, 2004
    Date of Patent: December 27, 2005
    Assignee: Lisle Corporation
    Inventors: Michael L. Whitehead, Donald R. Simmons