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:
Jan. 08, 2002
Filed:
Aug. 02, 1999
Applicant:
Inventor:
Kevin L. Hofer, Concord, CA (US);
Assignee:
Chevron U.S.A. Inc., San Francisco, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10G 6/512 ; C10G 7/100 ;
U.S. Cl.
CPC ...
C10G 6/512 ; C10G 7/100 ;
Abstract
A process for the production of a UV stable lubricating base oil from a waxy hydrocarbon feedstock comprising the steps of hydrocracking the feedstock; dewaxing the intermediate feedstock from the hydrocracking zone under low pressure; and stabilizing the dewaxed lubricating base oil under high pressure in a hydrofinishing zone.