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:
Apr. 18, 2000
Filed:
Jul. 24, 1998
Applicant:
Inventors:
Thomas V Harris, Benicia, CA (US);
R Norm Reynolds, Jr, Point Richmond, CA (US);
Roger F Vogel, Fairfield, CA (US);
Donald S Santilli, Larkspur, CA (US);
Assignee:
Chevron U.S.A. Inc., San Francisco, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208138 ; 208135 ; 208137 ; 208 58 ; 208 60 ; 208 27 ; 585739 ;
Abstract
A dewaxing process for lowering the haze point of a bright stock which includes contacting a bright stock in the presence of added hydrogen gas with a Zeolite EU-1 catalyst in combination with a ZSM-48 and/or SSZ-32 catalyst.