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:
Apr. 10, 2012
Filed:
Sep. 12, 2008
Applicants:
Heinz Muller, Monheim, DE;
Diana Maker, Monheim, DE;
Nadja Herzog, Korschenbroich, DE;
Inventors:
Assignee:
Emery Oleochemicals GmbH, Dusseldorf, DE;
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/02 (2006.01); C09K 8/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
Oligoglycerol esters of fatty acids, preferably of unsaturated fatty acids, can be used as thickeners in oil-based drilling mud compositions. The oligoglycerides are preferably employed in invert drilling muds, the oily phase of which contains paraffins.