Patents by Inventor Charles D. Hainsworth

Charles D. Hainsworth 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).

  • Hydraulic twin hitch
    Patent number: 6585057
    Abstract: A dual tractor hitch used to pull twin hay balers which have an acid tank for treating baled material.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: July 1, 2003
    Inventor: Charles D. Hainsworth