Patents by Inventor Frank Hatch

Frank Hatch 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).

  • Liquid antacid compositions
    Patent number: 5976578
    Abstract: Liquid antacid compositions containing a tri- or di-ester buffer have a reduced final product pH providing for a more efficacious preservative system and better tasting product without compromising to acid neutralization capacity of the antacid.
    Type: Grant
    Filed: September 17, 1997
    Date of Patent: November 2, 1999
    Assignee: McNeil-PPC, Inc.
    Inventors: Douglas S. Beyerle, John Case, Gerard P. McNally, Frank Hatch