Patents by Inventor Duane G. Mennenga

Duane G. Mennenga 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).

  • Apparatus and method for converting a stock trailer into a horse trailer
    Patent number: 6477985
    Abstract: An apparatus and method for converting a stock trailer into a horse trailer. Dividers are mounted on the inside of a stock trailer to create separate compartments for a number of horses. When the trailer reaches its destination, the dividers can be removed and used in combination with the stock trailer to create a corral for the horses.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: November 12, 2002
    Assignee: Ox Bow Manufacturing Equestrian Gates
    Inventors: Duane G. Mennenga, Barton L. Saylor