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:
Oct. 19, 2004
Filed:
Aug. 24, 2001
Applicant:
Inventors:
Heinz Mueller, Monheim, DE;
Claus-Peter Herold, Mettmann, DE;
Frank Bongardt, Meerbusch, DE;
Nadja Herzog, Erkrath, DE;
Stephan von Tapavicza, Erkrath, DE;
Assignee:
Cognis Deutschland GmbH & Co. KG, Duesseldorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 7/02 ;
U.S. Cl.
CPC ...
C09K 7/02 ;
Abstract
A process for imparting lubricity to an aqueous drilling fluid used in geological exploration involving: (a) providing an aqueous drilling fluid; (b) providing a lubricant component containing a partial glyceride of predominantly unsaturated fatty acids having from about 16 to 24 carbon atoms; and (c) introducing the partial glyceride into the aqueous drilling fluid.