Patents by Inventor Elspeth A. Murrell

Elspeth A. Murrell 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).

  • Skin treatment compositions
    Patent number: 5037850
    Abstract: A skin-care composition comprising a topically acceptable oil-in-water or water-in-oil emulsion base and from 1,000 to 15,000 I Ug.sup.-1 of a C.sub.1-10 alkyl ether or a C.sub.3-10 alkyl ester of retinol is disclosed. The composition preferably contains an anti-oxidant such as butylated hydroxytoluene or butylated hydroxyanisole. The composition is useful in promoting epidermal mitosis.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: August 6, 1991
    Assignee: Beecham Group p.l.c.
    Inventors: Thomas J. Elliott, Elspeth A. Murrell