Patents by Inventor Sherman Allen

Sherman Allen 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).

  • Rope tightener
    Patent number: D390098
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: February 3, 1998
    Inventor: Sherman Allen
  • Rope tensioner
    Patent number: D701447
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: March 25, 2014
    Inventor: Sherman Allen