Patents by Inventor Richard Edward Brinkman

Richard Edward Brinkman 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).

  • Antidandruff shampoos containing metallic cation complex to reduce in-use sulfide odor
    Patent number: 4089945
    Abstract: An antidandruff shampoo comprising a surfactant, sulfur or selenium sulfide and a metallic complex wherein the cation of said complex is an ion of a heavy metal and the complexing agent is selected so that the complex can effectively counteract the formation of sulfide off odors.
    Type: Grant
    Filed: January 6, 1977
    Date of Patent: May 16, 1978
    Assignee: The Procter & Gamble Company
    Inventors: Richard Edward Brinkman, Robert Loren Vogenthaler