Patents by Inventor Ranjit U. Chatterjee

Ranjit U. Chatterjee 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).

  • Photoprotection compositions and methods comprising sorbohydroxamic acid
    Patent number: 5039513
    Abstract: Disclosed are topical compositions comprising sorbohydroxamic acid with a radical scavenging compound which prevent damage to skin caused UV radiation. Also disclosed is a method for using these compositions topically, to prevent damage to skin caused by UV radiation exposure.
    Type: Grant
    Filed: August 25, 1989
    Date of Patent: August 13, 1991
    Assignee: The Procter & Gamble Company
    Inventors: Ranjit U. Chatterjee, Stephen J. Kirchner