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:
Jan. 30, 2018
Filed:
May. 10, 2010
Applicants:
Andreas Karau, Vieux Moulin, FR;
Nicolas Morin, Venette, FR;
Robert Gerstmeir, Werther, DE;
Inventors:
Assignee:
Evonik Degussa GmbH, Essen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C12P 7/40 (2006.01); C12P 7/26 (2006.01);
U.S. Cl.
CPC ...
C12P 7/26 (2013.01); C12P 7/40 (2013.01);
Abstract
The present invention refers to a method for the preparation of 2-keto carboxylic acid having the general formula R—CO—COOH, wherein Ris a branched alkyl group having 3 to 7 carbon atoms, or a salt thereof, comprising a fermentation step wherein a microorganism is grown in a culture medium in order to provide a culture broth containing 2-keto carboxylic acid or a salt thereof.