Patents by Inventor James F. Watkins

James F. Watkins 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).

  • Sectional grain drill hitch
    Patent number: 4109928
    Abstract: A hitch of modular construction adaptable for coupling to a tractor any number of implements from one to five, the hitch modules being pivotally interconnected and articulated for following uneven land surfaces, and being further provided with means for adjusting the hitch into a configuration convenient for transportation of the assembled implements.
    Type: Grant
    Filed: November 1, 1976
    Date of Patent: August 29, 1978
    Assignee: Clyde Machines, Inc.
    Inventor: James F. Watkins