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. 19, 2016
Filed:
Apr. 15, 2011
Applicants:
Ulrich Steinbrenner, Neustadt, DE;
Christian Bittner, Bensheim, DE;
Günter Oetter, Frankenthal, DE;
Marcus Guzmann, Mühlhausen, DE;
Inventors:
Ulrich Steinbrenner, Neustadt, DE;
Christian Bittner, Bensheim, DE;
Günter Oetter, Frankenthal, DE;
Marcus Guzmann, Mühlhausen, DE;
Assignee:
BASF SE, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/22 (2006.01); C09K 8/34 (2006.01); C09K 8/584 (2006.01); C09K 8/60 (2006.01);
U.S. Cl.
CPC ...
C09K 8/584 (2013.01);
Abstract
The use of a surfactant mixture comprising at least one surfactant having a hydrocarbon radical composed of from 12 to 30 carbon atoms and at least one cosurfactant having a branched hydrocarbon radical composed of from 6 to 11 carbon atoms for tertiary mineral oil extraction.