Patents by Inventor Allen Trenkle

Allen Trenkle 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).

  • Use of vitamin D, its metabolites and analogs to improve tenderness of meat and meat products
    Patent number: 6042855
    Abstract: A method of improving the tenderness of meat and meat products is described. The method includes administering excessive doses of vitamin D to meat producing animals prior to slaughter. The vitamin D causes greater calcium activated calpain activity which degrades certain myofibrillar proteins in the meat postmortem. The resulting meat has a significantly lower shear force in comparison to untreated meat.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: March 28, 2000
    Assignees: United States of America (USDA), Iowa State University Research Foundation, Inc.
    Inventors: Donald C. Beitz, Allen Trenkle, Frederick C. Parrish, Jayden L. Montgomery, Ronald L. Horst