Patents by Inventor Nigel P. Bird

Nigel P. Bird 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).

  • Oral compositions
    Patent number: 4997640
    Abstract: The disclosure concerns a toothpaste having antimicrobial activity packaged in a closed container comprising water, an ascorbic acid compound consisting of ascorbic acid, an ascorbic acid salt or an ascorbic acid ester and a copper catalyst for the auto-oxidation of the ascorbic acid compound during use of the toothpaste.
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: March 5, 1991
    Assignee: Chesebrough-Pond's USA Co., division of Conopco, Inc.
    Inventors: Nigel P. Bird, Geoffrey S. Ingram, Paul I. Riley, James A. Ritchie