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:
Mar. 10, 1998
Filed:
Apr. 15, 1996
Applicant:
Inventors:
Sophie Aliphat, Billere, FR;
Frederic Perie, Billere, FR;
Christian Zurdo, Pau, FR;
Alain Martignon, Sainte Marie, FR;
Assignee:
Elf Aquitaine Production, Coubevoie, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210606 ; 210610 ; 210632 ; 507211 ; 507936 ;
Abstract
Process for the treatment of drilling muds recovered at the surface of the ground, especially synthetic muds, characterized in that it comprises at least one stage of hydrolysis of said mud by means of a lipase.