Patents by Inventor Francis L. Koschak

Francis L. Koschak 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).

  • Patent number: 5004624
    Abstract: A shelf-stable, semi-moist pet food, wherein partly farinaceous solid pieces are covered by or immersed in an aqueous free gravy. The solid pieces are prepared to be resistant to significant swelling or disintegration when in contact with an aqueous liquid, preferably by incorporating binding means such as vital wheat gluten. A preferred aqueous gravy has a pH of less than about 4.7 and a sufficiently low water activity so that the gravy itself is also shelf stable. The mixture of gravy and solid pieces has a water activity of less than about 0.9 and a pH of less than about 4.7 to resist microbiological growth.
    Type: Grant
    Filed: July 17, 1989
    Date of Patent: April 2, 1991
    Assignee: Star-kist Foods, Inc.
    Inventors: Francis L. Koschak, Felicisimo S. Sarno