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:
Sep. 09, 1986
Filed:
Jun. 03, 1985
Applicant:
Inventor:
Richard G Graven, Pennington, NJ (US);
Assignee:
Mobil Oil Corporation, New York, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208 89 ; 208 97 ;
Abstract
The oxidation and thermal stability of severely hydrotreated lube stocks processed through a catalytic dewaxing process comprising a catalytic dewaxing step and a hydrofinishing step is improved by adding a relatively small amount of a sulfur compound upstream of the hydrofinishing step.