Inventor · disambiguated record
Andreas Krebs
Also filed as: KREBS ANDREAS
44 granted patents·1 pending application·1,225 citations·filing 1986–2007
98Inventor score
Top patents by PatentIndex Score
45 records- 0197US5116836A3-phenyl-pyrrolidine-2,4-dione derivatives having pesticidal activityBAYER AG·Filed 1990·Granted May 26, 1992·105 cites·6 claims
- 0297US5045560APesticidal tautomers of 3-aryl-pyrrolidine-2,4-diones and use thereasBAYER AG·Filed 1990·Granted Sep 3, 1991·107 cites·15 claims
- 0397US4990517A7-(1-pyrrolidinyl)-3-quinolone- and -naphthyridonecarboxylic acid derivatives as antibacterial agents and feed additivesBAYER AG·Filed 1989·Granted Feb 5, 1991·117 cites·14 claims
- 0496US4985063A3-aryl-pyrrolidine-2,4-dionesBAYER AG·Filed 1989·Granted Jan 15, 1991·112 cites·6 claims
- 0592US5358924A3-hydroxy-4-aryl-5-oxo-pyrozoline derivatives, compositions and useBAYER AG·Filed 1992·Granted Oct 25, 1994·40 cites·20 claims
- 0692US5140033AAntibacterial 5-alkylquinolonecarboxylic acidsBAYER AG·Filed 1990·Granted Aug 18, 1992·47 cites·3 claims
- 0792US5091537AIntermediates for preparing 3-aryl-pyrrolidine-2,4-dionesBAYER AG·Filed 1990·Granted Feb 25, 1992·53 cites·2 claims
- 0891US5607942A7-(1-pyrrolidinyl)-3-quinolone- and - naphthyridone-carboxylic acid derivatives as antibacterial agents and feed additivesBAYER AG·Filed 1995·Granted Mar 4, 1997·73 cites·8 claims
- 0990US5393729A3-aryl-pyrone derivativesBAYER AG·Filed 1993·Granted Feb 28, 1995·56 cites·10 claims
- 1090US5332720A3-hydroxy-4-aryl-5-oxo-pyrazoline derivativesBAYER AG·Filed 1992·Granted Jul 26, 1994·53 cites·9 claims
- 1190US5142065A3-aryl-pyrrolidine-2,4-dionesBAYER AG·Filed 1991·Granted Aug 25, 1992·42 cites·1 claims
- 1289US5186737APesticidal 3-aryl-pyrrolidine-2,4-dionesBAYER AG·Filed 1991·Granted Feb 16, 1993·55 cites·12 claims
- 1387US5480879AQuinolonecarboxylic acidsBAYER AG·Filed 1993·Granted Jan 2, 1996·34 cites·9 claims
- 1486US5780394A3-hydroxy-4-aryl-5-oxo-pyrazoline derivativesBAYER AG·Filed 1997·Granted Jul 14, 1998·25 cites·11 claims
- 1586US5661110A3-hydroxy-4-aryl-5-oxo-pyrazoline derivativesBAYER AG·Filed 1995·Granted Aug 26, 1997·23 cites·11 claims
- 1686US5059597A7-(4-oxa or 4-thia-2,7-diazabicyclo[3.3.0]oct-2-en-3-yl)-3-quinolone-and-naphthyridone-carboxylic acid derivatives as antibacterial agents and feed additivesBAYER AG·Filed 1990·Granted Oct 22, 1991·44 cites·8 claims
- 1785US5739389AAryl carboxylic acid derivativesBAYER AG·Filed 1996·Granted Apr 14, 1998·23 cites·4 claims
- 1882US5464796A7-isoindolinyl-quinolone-carboxylic acid derivativesBAYER AG·Filed 1992·Granted Nov 7, 1995·24 cites·10 claims
- 1980US5468742A8-vinyl- and 9-ethinyl-quinolone-carboxylic acidsBAYER AG·Filed 1993·Granted Nov 21, 1995·21 cites·10 claims
- 2077US6221810B13-hydroxy-4-aryl-5-oxo-pyrazoline derivativesBAYER AG·Filed 1998·Granted Apr 24, 2001·12 cites·8 claims
- 2176US5416096A7-(1-pyrrolidinyl)-3-quinolone carboxylic acid derivatives as antibacterial agents and feed additivesBAYER AG·Filed 1991·Granted May 16, 1995·23 cites·11 claims
- 2274US5371090ANaphthyridonecarboxylic acid derivativesBAYER AG·Filed 1994·Granted Dec 6, 1994·12 cites·8 claims
- 2373US5252734AAntibacterial 5-alkylquinolonecarboxylic acidsBAYER AG·Filed 1992·Granted Oct 12, 1993·14 cites·3 claims
- 2472US5457104AQuinolone- and naphthyridonecarboxylic acid derivativesBAYER AG·Filed 1994·Granted Oct 10, 1995·27 cites·7 claims
- 2572US5312823A7-azaisoindolinyl-quinolone-carboxylic acid derivativesBAYER AG·Filed 1992·Granted May 17, 1994·11 cites·10 claims
- 2669US5474974A3-hydroxy-4-aryl-5-oxo-pyrazoline derivativesBAYER AG·Filed 1994·Granted Dec 12, 1995·9 cites·11 claims
- 2765US5556979A7-isoindolinyl-naphthyridone derivatives, compositions and anti-bacterial use thereofBAYER AG·Filed 1993·Granted Sep 17, 1996·14 cites·10 claims
- 2864US6392044B1Racemization of R,S-dioxo-benzylpyrrolopiperidineBAYER AG·Filed 2000·Granted May 21, 2002·4 cites·10 claims
- 2963US7709644B2Process for the enantiomeric enrichment of cis-8-benzyl-7,9-dioxo-2,8-diazabicyclo[4.3.0]nonaneLANXESS DEUTSCHLAND GMBH·Filed 2007·Granted May 4, 2010·0 cites·23 claims
- 3057US5883258AProcess for preparing 3-chlorobenzisothiazolesBAYER AG·Filed 1997·Granted Mar 16, 1999·7 cites·11 claims
- 3155US5436334AEnantiomerically pure 2-oxa-5,8-diazabicyclo[4.3.0]nonanes and process for their preparationBAYER AG·Filed 1992·Granted Jul 25, 1995·4 cites·3 claims
- 3252US6018054A7-isoindolinyl-quinolone derivatives and 7-isoindolinyl-naphthyridone derivativesBAYER AG·Filed 1997·Granted Jan 25, 2000·3 cites·3 claims
- 3352US5304650AProcess for the preparation of alkyl N-(hydroxyalkyl)-carbamatesBAYER AG·Filed 1992·Granted Apr 19, 1994·6 cites·9 claims
- 3447US5723627APreparation of 7-(3-amino- and 3-amino-methyl-1-pyrrolidinyl)-3-quinolonecarboxylic acids and -naphthridonecarboxylic acidsBAYER AG·Filed 1997·Granted Mar 3, 1998·2 cites·1 claims
- 3547US5532364AEnantiomerically pure 2-oxa-5,8-diazabicyclo[4.3.0]nonanes and process for their preparationBAYER AG·Filed 1994·Granted Jul 2, 1996·2 cites·2 claims
- 3647US2004044205A1Process for the enantiomeric enrichment of cis-8-benzyl-7,9-dioxo-2,8-diazabicyclo[4.3.0]nonaneFiled 2003·Application pending·0 cites
- 3746US5739339A7-isoindolinyl-quinolone derivatives and 7-isoindolinyl-naphthyridone derivativesBAYER AG·Filed 1996·Granted Apr 14, 1998·2 cites·9 claims
- 3844US4777283AProcess for the preparation of alkoxycarbonyl isocyanatesBAYER AG·Filed 1986·Granted Oct 11, 1988·2 cites·9 claims
- 3943US5202337A7-(2,7-diazabicyclo[3.3.0]octyl)-3-quinoline- and -naphthyridone-carboxylic acid derivativesBAYER AG·Filed 1991·Granted Apr 13, 1993·8 cites·11 claims
- 4042US4865641AHerbicidal new thiazolyl ether and thioether derivativesBAYER AG·Filed 1988·Granted Sep 12, 1989·2 cites·10 claims
- 4140US4910319AProcess for preparing 3-amino-1-benzylpyrrolidinesBAYER AG·Filed 1988·Granted Mar 20, 1990·4 cites·11 claims
- 4238US6004956AEnantiomerically pure 2-oxa-5,8-dizaabicyclo[4.3.0] nonanes and process for their preparationBAYER AG·Filed 1996·Granted Dec 21, 1999·1 cites·3 claims
- 4338US5061712APreparation of 7-(3-amino- and 3-amino-methyl-1-pyrrolidinyl)-3-quinolonecarboxylic acids and -naphthyridonecarboxylic acidsBAYER AG·Filed 1990·Granted Oct 29, 1991·2 cites·11 claims
- 4435US5648493APreparation of 7-(3-amino- and 3-amino-methyl-1-pyrrolidinyl)-3-quinolonecarboxylic acids and -naphthyridonecarboxylic acidsBAYER AG·Filed 1991·Granted Jul 15, 1997·0 cites·3 claims
- 4535US5284855A7-(2,7-diazabicyclo[3.3.0]octyl)-3-quinolone-and-naphthyridonecarboxylic acid derivativesBAYER AG·Filed 1992·Granted Feb 8, 1994·0 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Andreas Krebs files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →