Inventor · disambiguated record
Matthias Kottenhahn
Also filed as: KOTTENHAHN MATTHIAS
18 granted patents·2 pending applications·118 citations·filing 1992–2014
93Inventor score
Files withDEGUSSA15EVONIK DEGUSSA GMBH2DEGUSSA AKTIENGELLSCHAFT1HOFFMAN LAROCHE AG F1HOFFMANN LA ROCHE1
Top patents by PatentIndex Score
20 records- 0180US6251625B1Process for preparing peptides and N-carbamoyl-protected peptidesDEGUSSA·Filed 1996·Granted Jun 26, 2001·41 cites·19 claims
- 0275US6673942B1Resolution of DL-racemic mixturesDEGUSSA·Filed 2000·Granted Jan 6, 2004·6 cites·12 claims
- 0367US5585500AMethod of producing optically active pyrrolidines with high enantiomeric purityDEGUSSA·Filed 1995·Granted Dec 17, 1996·12 cites·9 claims
- 0459US5859248AProcess for the production of a β-amino alcoholHOFFMANN LA ROCHE·Filed 1995·Granted Jan 12, 1999·6 cites·1 claims
- 0559US5616727AProcess for purifying 1-[N2 -((S)-ethoxycarbonyl)-3-phenylpropyl)-N6 -trifluoroacetyl]-l-lysyl-l-proline (lisinopril (TFA) ethyl esterDEGUSSA·Filed 1996·Granted Apr 1, 1997·11 cites·20 claims
- 0656US5608076AMethod of preparing amionoakylhydantoins and aminoalkyl-alpha-amino acidsDEGUSSA·Filed 1993·Granted Mar 4, 1997·5 cites·5 claims
- 0752US5932758AProcess for the production β-amino-α-hydroxycarboxylic acids and derivatives thereofDEGUSSA·Filed 1996·Granted Aug 3, 1999·5 cites·9 claims
- 0851US2015174088A1Food supplement containing alpha-keto acids for supporting diabetes therapyEVONIK DEGUSSA GMBH·Filed 2014·Application pending·0 cites
- 0950US5707837AMethod of producing (R)-tertiary leucineDEGUSSA·Filed 1996·Granted Jan 13, 1998·4 cites·7 claims
- 1046US6090913ATransesterification and other conversion reactions of acid derivatives, using an amidine baseDEGUSSA·Filed 1997·Granted Jul 18, 2000·3 cites·12 claims
- 1144US5386035AMethod of producing optically active 1,3-imidazolidine-4-onesDEGUSSA·Filed 1992·Granted Jan 31, 1995·2 cites·11 claims
- 1243US5387696AReductive amination of an amino acid or of an amino acid derivative with an α-keto acid or an α-keto acid derivativeDEGUSSA·Filed 1992·Granted Feb 7, 1995·13 cites·9 claims
- 1340US6018050AMethod of preparing optically active α-amino acids and α-amino acid derivativesDEGUSSA·Filed 1996·Granted Jan 25, 2000·3 cites·28 claims
- 1440US2010280123A1Food supplement containing alpha-keto acids for supporting diabetes therapyEVONIK DEGUSSA GMBH·Filed 2010·Application pending·0 cites
- 1538US5907044AMethod of isolating 1- N2 -((S)-ethoxycarbonyl)-3-phenylpropyl)-N6 -trifluoroacetyl!-L-lysyl-L-proline (lisinopril (TFA) ethyl ester, LPE)DEGUSSA AKTIENGELLSCHAFT·Filed 1997·Granted May 25, 1999·2 cites·19 claims
- 1638US5631385AMethod for the preparation of N-substituted 4-ketoproline derivativesDEGUSSA·Filed 1996·Granted May 20, 1997·3 cites·8 claims
- 1735US6455705B11-[N2-((S)-ethoxycarbonyl)-3-phenylproply)-N6-trifluoroacetyl]-L-ysyl-L-proline (lisinopril (TFA) ethyl ester, LPE)DEGUSSA·Filed 1998·Granted Sep 24, 2002·2 cites·2 claims
- 1832US5994555AProcess for the production of a β-amino alcoholHOFFMAN LAROCHE AG F·Filed 1998·Granted Nov 30, 1999·0 cites·1 claims
- 1930US5744611AProcess for the reduction of amino acids and the derivatives thereofDEGUSSA·Filed 1996·Granted Apr 28, 1998·0 cites·7 claims
- 2029US6093823AProcess for the continuous production of basic cyclic optically active α- amino acidsDEGUSSA·Filed 1996·Granted Jul 25, 2000·0 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →