Patents by Inventor Kelly Hua Zhang

Kelly Hua Zhang 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).

  • Cosmetic compositions and methods for lightening the skin
    Publication number: 20020106384
    Abstract: Cosmetic compositions and methods for lightening the skin using a low molecular weight fraction of gugulipid in combination with an alpha-hydroxy acid, or niacinamide, or L-phenylalanine.
    Type: Application
    Filed: December 7, 2000
    Publication date: August 8, 2002
    Inventors: Kelly Hua Zhang, Prasanna Satpute, Koichi Iwata, Michael Tallman
  • Absorbance assay for the measurement of cornified envelopes using bicinchoninic acid
    Patent number: 5763282
    Abstract: A rapid, practical assay for measuring the concentration of cornified envelopes based on measuring the absorbance, which utilizes the addition of bicinchoninic acid to insoluble cornified envelopes preparation, after the cornified envelopes have been separated from soluble proteins.
    Type: Grant
    Filed: March 20, 1997
    Date of Patent: June 9, 1998
    Assignee: Chesebrough-Pond's USA Co., Division of Conopco, Inc.
    Inventor: Kelly Hua Zhang
  • Skin care compositions containing geranyl geraniol and retinol or retinyl esters
    Patent number: 5756109
    Abstract: Geranyl geraniol inhibits esterification of retinol into inactive retinyl esters. Thus, effects of the retinol or retinyl esters in combination with geranyl geraniol are analogous to treatment with retinoic acid.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: May 26, 1998
    Assignee: Chesebrough-Pond's USA Co., Division of Conopco, Inc.
    Inventors: Allan Robert Burger, Kelly Hua Zhang, Stewart Paton Granger, Anthony Vincent Rawlings, Ian Richard Scott