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:
Aug. 03, 2021
Filed:
Dec. 15, 2017
Applicant:
Total Marketing Services, Puteaux, FR;
Inventors:
Nicolas Champagne, Caluire, FR;
Dominique Blain, Fourqueux, FR;
Assignee:
TOTAL MARKETING SERVICES, Puteaux, FR;
Primary Examiner:
Int. Cl.
CPC ...
C10M 175/00 (2006.01); B01J 20/20 (2006.01);
U.S. Cl.
CPC ...
C10M 175/0008 (2013.01); C10M 175/0033 (2013.01); C10M 175/0058 (2013.01); B01J 20/20 (2013.01); C10M 2203/1045 (2013.01);
Abstract
The invention relates to a method for lowering the content of polycyclic aromatic hydrocarbons (PAH) in a used lubricant composition, in which said used lubricant composition passes over activated carbon, said method not comprising a solvent extraction step.