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:
Aug. 11, 2009
Filed:
May. 14, 2005
Applicants:
Martin Hateley, Aschaffenburg, DE;
Thomas Hauhlner, Bad Orb, DE;
Christoph Weckbecker, Gründau, DE;
Klaus Huthmacher, Gelnhausen, DE;
Dieter Buss, Aschaffenburg, DE;
Inventors:
Martin Hateley, Aschaffenburg, DE;
Thomas Hauhlner, Bad Orb, DE;
Christoph Weckbecker, Gründau, DE;
Klaus Huthmacher, Gelnhausen, DE;
Dieter Buss, Aschaffenburg, DE;
Assignee:
Evonik Degussa GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 319/12 (2006.01); C07C 227/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a sequence for the preparation of amino acids, for example alpha amino acids, in particular methionine, by making use of an amidocarbonylation reaction and reuse of the catalyst.