Patents by Inventor Margaret D. Batt

Margaret D. Batt 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).

  • Methods and compositions for increasing the diameter of the hair comprising retinol esters
    Patent number: 4992265
    Abstract: A hair care composition comprising at least 1,000 IUg.sup.-1 of an ester of retinol in a topically acceptable carrier is useful for increasing the diameter of growing hair.
    Type: Grant
    Filed: February 23, 1989
    Date of Patent: February 12, 1991
    Assignee: Beecham Group p.l.c.
    Inventors: Walter B. Davis, Margaret D. Batt, Benjamin D. Ridge