Patents by Inventor Marion F. Gregory

Marion F. Gregory 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).

  • Preserved sunscreen composition
    Patent number: 5292529
    Abstract: Preserved sunscreen compositions comprising 0.1 to 20% by weight of a substituted 1,3-diketone, a preservative system comprising 0.1 to 5% by weight of an organic acid and a cosmetically acceptable carrier for the sunscreen, the composition having a pH value not exceeding pH 6.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: March 8, 1994
    Assignee: Chesebrough-Pond's USA Co., Division of Conopco, Inc.
    Inventors: Marion F. Gregory, Christine Morris