Patents by Inventor John Chengfeng Zhuang

John Chengfeng Zhuang 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 for regulating the condition of mammalian keratinous tissue via topical application of phytosterol compositions
    Publication number: 20040132699
    Abstract: The present invention relates to methods for regulating the condition of mammalian keratinous tissue wherein the methods comprise the step of topically applying to the keratinous tissue of a mammal needing such treatment, a safe and effective amount of a composition comprising:
    Type: Application
    Filed: December 19, 2003
    Publication date: July 8, 2004
    Applicant: The Procter & Gamble Company
    Inventors: John Chengfeng Zhuang, John Erich Oblong, Donald Lynn Bissett
  • Methods for regulating the condition of mammalian keratinous tissue via topical application of phytosterol compositions
    Publication number: 20020098218
    Abstract: The present invention relates to methods for regulating the condition of mammalian keratinous tissue wherein the methods comprise the step of topically applying to the keratinous tissue of a mammal needing such treatment, a safe and effective amount of a composition comprising:
    Type: Application
    Filed: November 26, 2001
    Publication date: July 25, 2002
    Applicant: The Procter & Gamble Company
    Inventors: John Chengfeng Zhuang, John Erich Oblong, Donald Lynn Bissett