Patents by Inventor Mark Edward Rerek

Mark Edward Rerek 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).

  • Stabilization of an unstable retinoid in oil-in-water emulsions for skin care compositions
    Patent number: 5744148
    Abstract: Oil-in-water emulsions containing an unstable retinoid (retinol or C.sub.2 -C.sub.3 ester thereof) in an oil phase. The retinoid is stabilized in the inventive emulsions, despite the presence of from about 50% to about 98% of an aqueous phase. The emulsions also preferably include a hydroxy acid.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: April 28, 1998
    Assignee: Chesebrough-Pond's USA Co., Division of Conopco, Inc.
    Inventors: Stephan Samuel Habif, Alexander Lips, Prem Chandar, Mark Edward Rerek
  • Skin care compositions for treating cellulite
    Patent number: 5667793
    Abstract: Anti-cellulite compositions based on a lipolytic active, which is an extract of Polygala tenuifolia, an extract of Platycodon grandiflorum, or an extract of Kochia scoparia. When Polygala tenuifolia or Platycodon grandiflorum is employed, a polar solvent extract is preferred. The extracts are preferably employed in conjunction with a xanthine, e.g. caffeine or theophylline (which are preferably obtained from a natural source), in order to lower the cost of the compositions.
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: September 16, 1997
    Assignee: Chesebrough-Pond's USA Co., Division of Conopco, Inc.
    Inventors: Suk Hyung. Cho, Norman Kramer Richardson, Allan Robert Burger, Anita Marie Brinker, Mark Edward Rerek