Patents by Inventor Dwaipayan Chaudhuri, deceased

Dwaipayan Chaudhuri, deceased 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).

  • Shampoo compositions with dimethicone copolyols
    Patent number: 5437809
    Abstract: A conditioning shampoo composition comprises, as the conditioning agents thereof, from 0.1 to 4.0% by weight of one or more dimethicone copolyols having an ethylene oxide/propylene oxide (EO/PO) ratio of from 20/80 to 80/20 and from 0.5 to 4.0% by weight of one or more non-ionic emulsifiers having an HLB of from 8 to 12 and which do not affect the foaming property of the shampoo.
    Type: Grant
    Filed: September 9, 1993
    Date of Patent: August 1, 1995
    Assignee: The Gillette Company
    Inventor: Dwaipayan Chaudhuri, deceased