Patents by Inventor George P. Newsoroff

George P. Newsoroff 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).

  • Lithium complex grease thickener and high dropping point thickened grease
    Patent number: 4897210
    Abstract: A lithium complex grease thickener for increasing the dropping point of a lubricating oil comprises as primary indgredients a lithium salt of 12-hydroxystearic acid or from alkyl esters thereof and a dilithium salt derived from dialky esters of terephthalic acid in a molar proportion of about 0.5 to 15:1.A lithium complex thickened grease of high lubricating activity, shear stability, penetration, water resistance and dropping point comprises a major proportion of a lubricating oil and about 1 to 45 wt % of the lithium complex thickener of this invention with respect to the thickened grease.
    Type: Grant
    Filed: July 12, 1988
    Date of Patent: January 30, 1990
    Assignee: Pennzoil Products Company
    Inventor: George P. Newsoroff