Patents by Inventor Edward W. Clark

Edward W. Clark 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).

  • Lanolin/lanolin acid ester skin treatment composition
    Patent number: 5641809
    Abstract: A skin treatment composition contains from about 10 to about 90 parts by weight of lanolin and from about 90 to 10 parts by weight of at least one ester of a lanolin acid. Preferably, a lower alkyl ester of lanolin fatty acids is utilized, e.g., isopropyl lanolate. The composition finds particular utility in the prevention or treatment of adverse skin reactions in radiation therapy.
    Type: Grant
    Filed: December 6, 1993
    Date of Patent: June 24, 1997
    Assignee: Lansinoh Laboratories, Inc.
    Inventors: Resheda Hagen, Edward W. Clark