Inventor · disambiguated record
Karlheinz Drauz
Also filed as: BAIER HELMUT · DRAUZ KARLHEINZ · DRAUZ KARLHEINZ DR
128 granted patents·15 pending applications·1,077 citations·filing 1979–2009
99Inventor score
Top patents by PatentIndex Score
143 records- 0193US6524837B1Hydantoinase variants with improved properties and their use for the production of amino acidsCALIFORNIA INST OF TECHN·Filed 2000·Granted Feb 25, 2003·38 cites·9 claims
- 0287US6284925B1Use of ferrocenyl ligands for catalytic, enantioselective hydrogenationDEGUSSA·Filed 1999·Granted Sep 4, 2001·43 cites·10 claims
- 0387US5591613AMethod for the preparation of D-arginine and L-ornithineDEGUSSA·Filed 1994·Granted Jan 7, 1997·43 cites·5 claims
- 0487US5534541ACompounds for combating plant diseaseDEGUSSA·Filed 1995·Granted Jul 9, 1996·44 cites·5 claims
- 0586US5405761AMethod for the preparation of salts of L-ornithineDEGUSSA·Filed 1991·Granted Apr 11, 1995·46 cites·2 claims
- 0686US4946968AMethod of preparing alkali metal salts of 2-pyrrolidone-5-carboxylic acidDEGUSSA·Filed 1988·Granted Aug 7, 1990·24 cites·4 claims
- 0786US4564514AProcess for the production of water-free organic hydrogen peroxide solutionDEGUSSA·Filed 1983·Granted Jan 14, 1986·31 cites·43 claims
- 0885US7589215B2Bisphosphines as bidentate ligandsDEGUSSA·Filed 2006·Granted Sep 15, 2009·7 cites·66 claims
- 0984US7361786B2Bisphosphines as bidentate ligandsDEGUSSA·Filed 2006·Granted Apr 22, 2008·7 cites·12 claims
- 1083US6372459B1N-acetyl amino acid racemaseDEGUSSA·Filed 2000·Granted Apr 16, 2002·9 cites·5 claims
- 1182US6492544B2Process for synthesis of enantiomerically enriched β-amino acidsDEGUSSA·Filed 2002·Granted Dec 10, 2002·23 cites·14 claims
- 1281US6191284B1Ligands and complexes for enantioselective hydrogenationDEGUSSA·Filed 1999·Granted Feb 20, 2001·53 cites·14 claims
- 1381US4376864ACyclic acetals of glutamic acid-γ-semialdehyde, process for their production and useDEGUSSA·Filed 1981·Granted Mar 15, 1983·12 cites·1 claims
- 1480US6251625B1Process for preparing peptides and N-carbamoyl-protected peptidesDEGUSSA·Filed 1996·Granted Jun 26, 2001·41 cites·19 claims
- 1579US6656710B2Process for the production of amino acids using racemase and acylaseDEGUSSA·Filed 2001·Granted Dec 2, 2003·5 cites·19 claims
- 1678US5605877ABicyclic imides as herbicidesDU PONT·Filed 1993·Granted Feb 25, 1997·26 cites·11 claims
- 1778US4728743AProcess for the production of 3-oxonitrilesDEGUSSA·Filed 1987·Granted Mar 1, 1988·14 cites·6 claims
- 1877US5534538AN-acyl dipeptides and their compositionsDEGUSSA·Filed 1994·Granted Jul 9, 1996·38 cites·2 claims
- 1977US5008192AEnzymatic process for the preparation of optically active cyanohydrinsKERNFORSCHUNGSANLAGE JUELICH·Filed 1989·Granted Apr 16, 1991·19 cites·27 claims
- 2076US6451943B1Process for the oxidation of alcohols using homogeneously soluble polymer-enlarged nitrogen compounds as the catalystDEGUSSA·Filed 2001·Granted Sep 17, 2002·9 cites·16 claims
- 2176US6037474AProcess for the preparation of cyclic 4-oxoamidinesDEGUSSA·Filed 1999·Granted Mar 14, 2000·26 cites·25 claims
- 2275US6673942B1Resolution of DL-racemic mixturesDEGUSSA·Filed 2000·Granted Jan 6, 2004·6 cites·12 claims
- 2374US7070963B2Amidase from variovoraxDEGUSSA·Filed 2002·Granted Jul 4, 2006·6 cites·12 claims
- 2474US4921971AMethod of preparing alkaline earth metal salts of 2-pyrrolidone-5-carboxylic acidDEGUSSA·Filed 1988·Granted May 1, 1990·11 cites·5 claims
- 2572US6767725B2Acetyl amino acid racemase from amycolatopsis orientalis for racemizing carbamoyl amino acidsDEGUSSA·Filed 2001·Granted Jul 27, 2004·2 cites·19 claims
- 2672US5670332AEnzymatic reactions and apparatus for carrying them outDEGUSSA·Filed 1994·Granted Sep 23, 1997·32 cites·9 claims
- 2770US4533766AProcess for the production of dihydroxybenzenesDEGUSSA·Filed 1984·Granted Aug 6, 1985·9 cites·30 claims
- 2868US6348620B1Method for homogeneous enantioselective hydrogenation using catalytic ferrocenyl bis-phosphine complexesDEGUSSA·Filed 1999·Granted Feb 19, 2002·12 cites·8 claims
- 2968US6225482B1Process for the enantioselective epoxidation of C═C double bondsDEGUSSA·Filed 1999·Granted May 1, 2001·15 cites·19 claims
- 3068US4482760AProcess for the production of 1,2-diolsDEGUSSA·Filed 1983·Granted Nov 13, 1984·8 cites·22 claims
- 3167US6825014B2Process for the preparation of allysine acetalDEGUSSA·Filed 2001·Granted Nov 30, 2004·2 cites·18 claims
- 3267US6787039B2Amino acid composition for hemodialysisDEGUSSA·Filed 2001·Granted Sep 7, 2004·3 cites·12 claims
- 3367US6492541B2Process for the preparation of 3-amino-2-oxo-pyrrolidines, novel intermediates and their useDEGUSSA·Filed 2001·Granted Dec 10, 2002·6 cites·4 claims
- 3467US6326327B1Process for preparing MeO-Peg-protected dihydroquinine or dihydroquinidine derivatives, new dihydroquinine or dihydroquinidine derivatives and their useDEGUSSA·Filed 2000·Granted Dec 4, 2001·3 cites·8 claims
- 3567US6114163AProcess for obtaining active L-α-amino carboxylic acids from corresponding racemic d, L-α-amino carboxylic acidsDEGUSSA·Filed 1998·Granted Sep 5, 2000·12 cites·9 claims
- 3667US5670652AMethod of producing optically active, 4-substituted (S)-2-oxazolidinonesDEGUSSA·Filed 1995·Granted Sep 23, 1997·10 cites·6 claims
- 3767US5585500AMethod of producing optically active pyrrolidines with high enantiomeric purityDEGUSSA·Filed 1995·Granted Dec 17, 1996·12 cites·9 claims
- 3867US4918224AMethod of preparing salts of N-acetyl cysteine or N-acetyl homocysteineDEGUSSA·Filed 1988·Granted Apr 17, 1990·8 cites·5 claims
- 3965US6800464B2Arthrobacter D-carbamoylase and methods of preparing enantiomerically enriched D-amino acidsDEGUSSA·Filed 2002·Granted Oct 5, 2004·1 cites·28 claims
- 4065US6258933B1Process for the one-stage resalting and purification of oligopeptidesDEGUSSA·Filed 1999·Granted Jul 10, 2001·16 cites·16 claims
- 4165US4234744AProcess for the production of aminoacid hydrochlorides/or diaminoacid dihydrochloridesDEGUSSA·Filed 1979·Granted Nov 18, 1980·6 cites·14 claims
- 4264US6060432AHerbicidal sulfonamidesDU PONT·Filed 1996·Granted May 9, 2000·12 cites·9 claims
- 4363US5516660AMicroorganisms, their use and method of producing L-α-amino acidsDEGUSSA·Filed 1994·Granted May 14, 1996·19 cites·10 claims
- 4463US4628126AProcess for the production of dihydroxybenzenesDEGUSSA·Filed 1984·Granted Dec 9, 1986·5 cites·43 claims
- 4560US7157251B2Process for the racemization of N-protected amino acids using racemaseDEGUSSA·Filed 2003·Granted Jan 2, 2007·0 cites·12 claims
- 4660US6664400B2N-arylsulfonamide and pyrrolidinecarboxylic acid intermediates, and their use for the preparation of herbicidal 1,3-dioxo-1h-pyrrolo[1,2-c]imidazole derivativesDEGUSSA·Filed 2002·Granted Dec 16, 2003·2 cites·24 claims
- 4760US5714355AMicroorganism, use thereof and process for the production of L-α-amino acidsDEGUSSA·Filed 1996·Granted Feb 3, 1998·15 cites·5 claims
- 4860US5543397ANew N-acyl dipeptides and their useDEGUSSA·Filed 1994·Granted Aug 6, 1996·25 cites·3 claims
- 4959US7378269B2Process for the production of amino acidsDEGUSSA·Filed 2003·Granted May 27, 2008·0 cites·6 claims
- 5059US5859248AProcess for the production of a β-amino alcoholHOFFMANN LA ROCHE·Filed 1995·Granted Jan 12, 1999·6 cites·1 claims
Showing the top 50 of 143 patent records by PatentIndex Score.
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