The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 12, 1992
Filed:
Dec. 22, 1988
Applicant:
Inventors:
Edward C Brink, Jr, Port Arthur, TX (US);
Clifton C Henderson, Port Arthur, TX (US);
James R Whiteman, Port Arthur, TX (US);
Henry K Sowers, Greenville, NC (US);
Assignee:
Texaco, Inc., White Plains, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C10M / ; C10M / ;
U.S. Cl.
CPC ...
252 / ; 252 73 ; 252 79 ; 252 / ; 5262193 ; 5263285 ;
Abstract
A method of making a methyl methacrylate-lauryl methacrylate copolymer for use as a non-dispersant, shear stabilizing, wear inhibiting and VI-improving additive in hydraulic fluids and lubricating oils comprises: