Patents by Inventor Richard A. Grifo

Richard A. Grifo 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).

  • Detergent composition comprising synergistic hydrotrope mixture of two classes of organic phosphate esters
    Patent number: 4137190
    Abstract: The invention relates to a detergent composition comprising a low-foaming, non-ionic surfactant and a synergistic hydrotrope mixture. The hydrotrope mixture is composed of two classes of organic phosphate esters A and B wherein A is the reaction product of a compound of the formulaR -- OCH.sub.2 CH.sub.2 --.sub.n OHwherein R is alkyl, aryl, aralkyl, or alkaryl and n is 1 to 10, with phosphorus pentoxide and B is the reaction product of a compound of the above formula with polyphosphoric acid. The weight ratio of A:B is 1:9 to 9:1. The composition may further comprise an alkaline builder.
    Type: Grant
    Filed: April 4, 1977
    Date of Patent: January 30, 1979
    Assignee: GAF Corporation
    Inventors: Paritosh M. Chakrabarti, Richard A. Grifo