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. 26, 2009
Filed:
Mar. 28, 2005
Jason R. Brown, North Ridgeville, OH (US);
Jonathan S. Vilardo, Willoughby, OH (US);
Virginia A. Carrick, Chardon, OH (US);
William D. Abraham, Concord Township, OH (US);
Paul E. Adams, Willoughby Hills, OH (US);
Jason R. Brown, North Ridgeville, OH (US);
Jonathan S. Vilardo, Willoughby, OH (US);
Virginia A. Carrick, Chardon, OH (US);
William D. Abraham, Concord Township, OH (US);
Paul E. Adams, Willoughby Hills, OH (US);
The Lubrizol Corporation, Wickliffe, OH (US);
Abstract
A lubricant and concentrate composition comprises a hindered-phenol-containing diester antioxidant derived from a hydrocarbyl diol or an amide diol. A method for improving the performance of a lubricant composition, especially a lubricant composition for an internal combustion engine, comprises the antioxidant.