Patents by Inventor Ruby Loo Bik Tan-Walker

Ruby Loo Bik Tan-Walker 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).

  • Pyrithione containing hair treatment composition
    Patent number: 5723112
    Abstract: The invention provides an antimicrobial hair treatment composition for topical application to human hair in the treatment of, for example, dandruff, including:(a) at least one surfactant;(b) fine particles of an insoluble particulate metal pyrithione, in which at least about 90% by weight of the particles have a size of 5 microns or less; and(c) a polymeric, water-soluble cationic deposition aid for the fine particles.The compositions have good mechanical stability, optical properties and anti-dandruff ability.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: March 3, 1998
    Assignee: Chesebrough-Pond's USA Co., Division of Conopco, Inc.
    Inventors: Paul Anthony Bowser, Jonathan David Hague, Andrew Malcolm Murray, Ruby Loo Bik Tan-Walker