Patents by Inventor Patrick B. Apfeld

Patrick B. Apfeld 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).

  • Acid resistant peelable casing
    Patent number: 5230933
    Abstract: Acid resistant peeling aid compositions and casings, particularly tubular cellulosic food casings, coated therewith, which compositions contain a water-soluble cellulose ether, dextrin and optionally lecithin.
    Type: Grant
    Filed: July 11, 1990
    Date of Patent: July 27, 1993
    Assignee: Viskase Corporation
    Inventors: Patrick B. Apfeld, Frederick M. Merritt, II