Patents by Inventor Robert C. Hahn, Sr.

Robert C. Hahn, Sr. 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).

  • Starch containing film ostomy pouches
    Patent number: 5009648
    Abstract: Biodegradable composite films comprising a starch containing blended polymeric film and a barrier material coated or laminated to the blended film. The use of such composite films in ostomy pouches and other medical products is described. Also described is an ostomy pouch construction in which an adhesive label is affixed to the pouch so as to reduce the escape of odor from the stomal aperture.
    Type: Grant
    Filed: March 22, 1989
    Date of Patent: April 23, 1991
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Marvin S. Aronoff, Denis E. Keyes, Robert C. Hahn, Sr.