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. 25, 2016
Filed:
Feb. 28, 2014
Applicant:
Wintershall Holding Gmbh, Kassel, DE;
Inventors:
Fabien Jean Brand, Huningue, FR;
Peter Hänggi, Giffers, CH;
Michèle Gerster, Binningen, CH;
Markus Hansch, Speyer, DE;
Assignee:
Wintershall Holding GmbH, Kassel, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 37/11 (2006.01);
U.S. Cl.
CPC ...
C07C 37/11 (2013.01); C07C 37/11 (2013.01); C07C 39/16 (2013.01);
Abstract
Described is a novel process for the preparation of substituted tris(2-hydroxyphenyl)methane derivatives and the use of tris(2-hydroxyphenyl)methane derivatives for tertiary mineral oil production.