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. 16, 2008
Filed:
Apr. 07, 2006
Michael J. Haire, Petaluma, CA (US);
John A. Zakarian, Hercules, CA (US);
John M. Rosenbaum, Richmond, CA (US);
Nancy J. Bertrand, Lafayette, CA (US);
Stephen J. Miller, San Francisco, CA (US);
Trevor Miller, Alameda, CA (US);
Vivek Palekar, Pleasanton, CA (US);
Ajit Ramchandra Pradhan, Walnut Creek, CA (US);
Michael J. Haire, Petaluma, CA (US);
John A. Zakarian, Hercules, CA (US);
John M. Rosenbaum, Richmond, CA (US);
Nancy J. Bertrand, Lafayette, CA (US);
Stephen J. Miller, San Francisco, CA (US);
Trevor Miller, Alameda, CA (US);
Vivek Palekar, Pleasanton, CA (US);
Ajit Ramchandra Pradhan, Walnut Creek, CA (US);
Chevron U.S.A. Inc., San Ramon, CA (US);
Abstract
A multigrade automotive gear lubricant comprising a base oil having a traction coefficient less than 0.021. A method for saving energy using a gear lubricant, comprising blending a multigrade gear lubricant by adding a base oil having a traction coefficient less than 0.021, and using the gear lubricant in an axle or differential. A process for making an energy saving automotive gear lubricant having a kinematic viscosity at 100° C. greater than 10 cSt. A gear lubricant comprising a FT derived base oil having a VI greater than 150 and a traction coefficient less than 0.015. A finished lubricant, comprising a FT derived base oil having a traction coefficient less than 0.015. A base oil having a traction coefficient less than 0.011 and a 50 wt % boiling point greater than 582° C.