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:
Nov. 28, 2006
Filed:
Mar. 11, 2003
Applicants:
John Rosenbaum, Richmond, CA (US);
David Kramer, San Anselmo, CA (US);
Joseph Pudlak, Vallejo, CA (US);
Inventors:
John Rosenbaum, Richmond, CA (US);
David Kramer, San Anselmo, CA (US);
Joseph Pudlak, Vallejo, CA (US);
Assignee:
Chevron U.S.A. Inc., San Ramon, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 101/02 (2006.01); C10M 105/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for preparing Fischer-Tropsch derived lubricating base oils by blending a Fischer-Tropsch distillate fraction having a viscosity of 2 or greater but less than 3 cSt at 100 degrees C. with a Fischer-Tropsch derived bottoms fraction; lubricating base oil compositions having a viscosity between about 3 and about 10 cSt at 100 degrees C. and a TGA Noack volatility of less than about 45 weight percent; and finished lubricants using the aforesaid lubricating base oils.