Patents by Inventor Brandon Helmholz Wiers

Brandon Helmholz Wiers 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).

  • Photoactivated bleach-compositions
    Patent number: 4094806
    Abstract: An unbuilt liquid detergent composition containing sulfonated zinc phthalocyanine as a bleach photoactivator is provided for removing stains from textiles. A process for removing stains from textiles by treating the textiles with an aqueous solution of the unbuilt detergent compositions of this invention in the presence of visible light and oxygen is provided. Preferred compositions contain a high proportion of zinc phthalocyanine tri and tetra sulfonates in the bleach photoactivator component.
    Type: Grant
    Filed: October 22, 1976
    Date of Patent: June 13, 1978
    Assignee: The Procter & Gamble Company
    Inventor: Brandon Helmholz Wiers