Patents by Inventor David T. Parrott

David T. Parrott 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).

  • Antiperspirant materials and compositions
    Patent number: 5593663
    Abstract: Novel antiperspirant actives are amphiphilic materials which form, upon contact with perspiration, a water-insoluble liquid crystal phase of greater than one-dimensional periodicity, e.g. a cubic (three-dimensional periodicity) or hexagonal (two-dimensional periodicity) liquid crystal structure. Examples of such actives include lipids, surfactants, emulsifiers, polymer amphiphilic complexes and block copolymer surfactants which form the required liquid crystal phase upon contact with sweat. Preferably, antiperspirant compositions comprising the novel active(s) are free of conventional antiperspirant actives, especially aluminum and/or zirconium salts.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: January 14, 1997
    Assignee: Chesebrough-Pond's USA Co., Division of Conopco, Inc.
    Inventors: Francis J. Leng, David T. Parrott
  • Cosmetic composition
    Patent number: 5326565
    Abstract: Novel pseudoceramides are defined, together with their synthesis and compositions comprising them for topical application to human skin, hair and nails.
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: July 5, 1994
    Assignee: Elizabeth Arden Co.
    Inventors: Peter Critchley, Desmond B. Hagan, Susan E. Kirsch, David T. Parrott, Anthony V. Rawlings, Ian R. Scott, Anthony P. Taylor