Patents by Inventor Earl A. Guinter

Earl A. Guinter 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).

  • Impact wrench
    Patent number: D393580
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: April 21, 1998
    Assignee: Ingersoll-Rand Company
    Inventors: Matthew D. Bantly, George W. Opdyke, Keith A. Saylor, Earl A. Guinter