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:
May. 12, 2009
Filed:
Feb. 13, 2002
Applicants:
Mervyn Frank Daniel, Katy, TX (US);
Gilbert Robert Bernard Germaine, Petit Couronne, FR;
David John Wedlock, Chester, GB;
Inventors:
Mervyn Frank Daniel, Katy, TX (US);
Gilbert Robert Bernard Germaine, Petit Couronne, FR;
David John Wedlock, Chester, GB;
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 105/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A lubricating base oil composition having at least 95 wt % saturates, of which saturates fraction between 10 and 30 wt % are cyclo-paraffins and the remainder being n- and iso-paraffins, having a viscosity index of above 120 and a pour point of below −15° C.