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:
Dec. 04, 2001
Filed:
Mar. 21, 2000
Applicant:
Inventors:
Ian A. Cody, Baton Rouge, LA (US);
Douglas R. Boate, Baton Rouge, LA (US);
Sandra J. Linek, Williamstown, NJ (US);
William J. Murphy, Baton Rouge, LA (US);
John E. Gallagher, Califon, NJ (US);
Gary L. Harting, Westfield, NJ (US);
Assignee:
ExxonMobile Research and Engineering Company, Annandale, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10G 1/104 ;
U.S. Cl.
CPC ...
G10G 1/104 ;
Abstract
A process for producing a high VI/low volatility lubricating oil basestock and a lubricating oil basestock prepared by said process. The process comprises subjecting the raffinate from a solvent extraction step to a two step, single stage hydroconversion process wherein the first step involves severe hydroconversion of the raffinate followed by a cold hydrofinishing step.