Patents by Inventor Margaret Robinson Tallmadge

Margaret Robinson Tallmadge 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).

  • Ester oligomers suitable as soil release agents in detergent compositions
    Patent number: 5691298
    Abstract: Soil release agents which comprise: an ester backbone comprising (1) units selected from dihydroxy or polyhydroxy sulfonate (e.g., a sulfoethyl ether of glycerin), a unit which is at least trifunctional whereby ester linkages are formed resulting in a branched oligomer backbone (e.g., glycerol), or mixtures thereof, (2) terephthaloyl unit, and (3) oxyalkyleneoxy unit; and one or more capping units (preferably anionic).
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: November 25, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Eugene Paul Gosselink, James Albert Cleary, Robert Henry Rohrbaugh, Margaret Robinson Tallmadge, Shulin Zhang