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Matthias Kottenhahn
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Freigericht, DE
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last 30 patents
Information
Patent Grant
Resolution of DL-racemic mixtures
Patent number
6,673,942
Issue date
Jan 6, 2004
Degussa AG
Matthias Kottenhahn
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
1-[N2-((S)-ethoxycarbonyl)-3-phenylproply)-N6-trifluoroacet...
Patent number
6,455,705
Issue date
Sep 24, 2002
Degussa Aktiengesellschaft
Matthias Kottenhahn
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Process for preparing peptides and N-carbamoyl-protected peptides
Patent number
6,251,625
Issue date
Jun 26, 2001
Degussa Aktiengesellschaft
Andreas Bommarius
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the continuous production of basic cyclic optically act...
Patent number
6,093,823
Issue date
Jul 25, 2000
Degussa Aktiengesellschaft
Matthias Kottenhahn
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Transesterification and other conversion reactions of acid derivati...
Patent number
6,090,913
Issue date
Jul 18, 2000
Degussa-Huls Aktiengesellschaft
Karlheinz Drauz
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method of preparing optically active .alpha.-amino acids and .alpha...
Patent number
6,018,050
Issue date
Jan 25, 2000
Degussa Aktiengesellschaft
Hans-Josef Altenbach
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of a .beta.-amino alcohol
Patent number
5,994,555
Issue date
Nov 30, 1999
F. Hoffman-LaRoche AG
Matthias Kottenhahn
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production .beta.-amino-.alpha.-hydroxycarboxylic a...
Patent number
5,932,758
Issue date
Aug 3, 1999
Degussa Aktiengesellschaft
Klaus Stingl
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method of isolating 1-�N.sup.2 -((S)-ethoxycarbonyl)-3-phenylpropyl...
Patent number
5,907,044
Issue date
May 25, 1999
Degussa Aktiengellschaft
Matthias Kottenhahn
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Process for the production of a .beta.-amino alcohol
Patent number
5,859,248
Issue date
Jan 12, 1999
F. Hoffman-La Roche AG
Matthias Kottenhahn
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the reduction of amino acids and the derivatives thereof
Patent number
5,744,611
Issue date
Apr 28, 1998
Degussa Aktiengesellschaft
Matthias Kottenhahn
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method of producing (R)-tertiary leucine
Patent number
5,707,837
Issue date
Jan 13, 1998
Degussa Aktiengesellschaft
Karlheinz Drauz
C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information
Patent Grant
Method for the preparation of N-substituted 4-ketoproline derivatives
Patent number
5,631,385
Issue date
May 20, 1997
Degussa Aktiengesellschaft
Karlheinz Drauz
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for purifying 1-[N.sup.2 -((S)-ethoxycarbonyl)-3-phenylprop...
Patent number
5,616,727
Issue date
Apr 1, 1997
Degussa Aktiengesellschaft
Matthias Kottenhahn
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Method of preparing amionoakylhydantoins and aminoalkyl-alpha-amino...
Patent number
5,608,076
Issue date
Mar 4, 1997
Degussa Aktiengesellschaft
Matthias Kottenhahn
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method of producing optically active pyrrolidines with high enantio...
Patent number
5,585,500
Issue date
Dec 17, 1996
Degussa Aktiengesellschaft
Karlheinz Drauz
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Reductive amination of an amino acid or of an amino acid derivative...
Patent number
5,387,696
Issue date
Feb 7, 1995
Degussa Aktiengesellschaft
Matthias Kottenhahn
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Method of producing optically active 1,3-imidazolidine-4-ones
Patent number
5,386,035
Issue date
Jan 31, 1995
Degussa Aktiengesellschaft
Dieter Seebach
C07 - ORGANIC CHEMISTRY