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:
Sep. 28, 2004
Filed:
Jul. 30, 2003
Applicant:
Inventors:
Martin Körfer, Kalmthout-Achterbroek, BE;
Dieter Buss, Hamburg, DE;
Horst Weigel, Rodenbach, DE;
Christoph Weckbecker, Gründau-Lieblos, DE;
Hans Joachim Hasselbach, Gelnhausen, DE;
Klaus Huthmacher, Gelnhausen, DE;
Assignee:
Degussa AG, Düsseldorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
C07D / ;
Abstract
A process for the preparation of &agr;-amino acids by hydrolysis of hydantoins in the presence of water and at least one metallic oxide under conditions such that all the starting materials are completely dissolved in the water as a result of high pressure and high temperature and only one further phase is present in the reactor in addition to the metallic oxide phase.