Patents by Inventor Malcolm Stansfield

Malcolm Stansfield 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).

  • Low pH shampoo containing climbazole
    Patent number: 4867971
    Abstract: A stable homogeneous liquid antidandruff shampoo comprising about 0.10 to 2.0% by weight of 1-imidazolyl-1-(4-chlorophenoxy)-3,3-dimethylbutan-2-one (Climbazole) solubilized in an aqueous vehicle containing an acidic surfactant system of about pH 4 to pH 5.5 and further comprising a major amount of an anionic surfactant and minor amounts of either a nonionic, cationic, or amphoteric surfactant or a mixture thereof.
    Type: Grant
    Filed: April 22, 1988
    Date of Patent: September 19, 1989
    Assignee: Colgate-Palmolive Company
    Inventors: Joyce Ryan, Malcolm Stansfield