Patents by Inventor Duane E. Koch

Duane E. Koch 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).

  • Measuring the tenderness of cooked beef
    Patent number: 4052890
    Abstract: A method for testing cooked beef rounds to determine their tenderness by pressing a pointed probe into that portion of the Semimembranosus muscle of a cooked round which is proximal to the rump roast, and measuring the force required to penetrate the muscle to a predetermined depth.
    Type: Grant
    Filed: February 18, 1976
    Date of Patent: October 11, 1977
    Assignee: Armour and Company
    Inventors: Henry W. Kammlah, Harold K. Herring, Duane E. Koch