AK

Andreas Krebs

BH Bayer Healthcare: 43 patents #179 of 8,007Top 3%
LG Lanxess Deutschland Gmbh: 1 patents #212 of 576Top 40%
📍 Odenthal, DE: #12 of 290 inventorsTop 5%
Overall (All Time): #68,456 of 4,157,543Top 2%
44
Patents All Time

Issued Patents All Time

Showing 26–44 of 44 patents

Patent #TitleCo-InventorsDate
5332720 3-hydroxy-4-aryl-5-oxo-pyrazoline derivatives Bernd-Wieland Kruger, Reiner Fischer, Heinz-Jurgen Bertram, Thomas Bretschneider, Stefan Bohm +7 more 1994-07-26
5312823 7-azaisoindolinyl-quinolone-carboxylic acid derivatives Uwe Petersen, Thomas Schenke, Klaus Grohe, Klaus-Dieter Bremm, Rainer Endermann +2 more 1994-05-17
5304650 Process for the preparation of alkyl N-(hydroxyalkyl)-carbamates Bernd-Wieland Kruger 1994-04-19
5284855 7-(2,7-diazabicyclo[3.3.0]octyl)-3-quinolone-and-naphthyridonecarboxylic acid derivatives Uwe Petersen, Thomas Schenke, Michael Schriewer, Klaus Grohe, Ingo Haller +4 more 1994-02-08
5252734 Antibacterial 5-alkylquinolonecarboxylic acids Michael Schriewer, Klaus Grohe, Uwe Petersen, Thomas Schenke, Ingo Haller +3 more 1993-10-12
5202337 7-(2,7-diazabicyclo[3.3.0]octyl)-3-quinoline- and -naphthyridone-carboxylic acid derivatives Uwe Petersen, Thomas Schenke, Michael Schriewer, Klaus Grohe, Ingo Haller +4 more 1993-04-13
5186737 Pesticidal 3-aryl-pyrrolidine-2,4-diones Reiner Fischer, Bernd Baasner, Hermann Hageman, Albrecht Marhold, Hans-Joachim Santel +5 more 1993-02-16
5142065 3-aryl-pyrrolidine-2,4-diones Reiner Fischer, Hermann Hagemann, Albrecht Marhold, Klaus Lurssen, Robert R. Schmidt +4 more 1992-08-25
5140033 Antibacterial 5-alkylquinolonecarboxylic acids Michael Schriewer, Klaus Grohe, Uwe Petersen, Thomas Schenke, Ingo Haller +3 more 1992-08-18
5116836 3-phenyl-pyrrolidine-2,4-dione derivatives having pesticidal activity Reiner Fischer, Hermann Hagemann, Albrecht Marhold, Hans-Joachim Santel, Robert R. Schmidt +4 more 1992-05-26
5091537 Intermediates for preparing 3-aryl-pyrrolidine-2,4-diones Reiner Fischer, Hermann Hagemann, Albrecht Marhold, Klaus Lurssen, Robert R. Schmidt +4 more 1992-02-25
5061712 Preparation of 7-(3-amino- and 3-amino-methyl-1-pyrrolidinyl)-3-quinolonecarboxylic acids and -naphthyridonecarboxylic acids Uwe Petersen, Thomas Schenke, Klaus Grohe, Michael Schriewer, Ingo Haller +3 more 1991-10-29
5059597 7-(4-oxa or 4-thia-2,7-diazabicyclo[3.3.0]oct-2-en-3-yl)-3-quinolone-and-naphthyrido ne-carboxylic acid derivatives as antibacterial agents and feed additives Uwe Petersen, Thomas Schenke, Klaus Grohe, Michael Schriewer, Ingo Haller +3 more 1991-10-22
5045560 Pesticidal tautomers of 3-aryl-pyrrolidine-2,4-diones and use thereas Reiner Fischer, Bernd Baasner, Hermann Hagemann, Albrecht Marhold, Hans-Joachim Santel +5 more 1991-09-03
4990517 7-(1-pyrrolidinyl)-3-quinolone- and -naphthyridonecarboxylic acid derivatives as antibacterial agents and feed additives Uwe Petersen, Thomas Schenke, Klaus Grohe, Michael Schriewer, Ingo Haller +3 more 1991-02-05
4985063 3-aryl-pyrrolidine-2,4-diones Reiner Fischer, Hermann Hagemann, Albrecht Marhold, Klaus Lurssen, Robert R. Schmidt +4 more 1991-01-15
4910319 Process for preparing 3-amino-1-benzylpyrrolidines Thomas Schenke 1990-03-20
4865641 Herbicidal new thiazolyl ether and thioether derivatives Klaus Sasse, Reiner Fischer, Hermann Hagemann, Michael Schwamborn, Hans-Joachim Santel +2 more 1989-09-12
4777283 Process for the preparation of alkoxycarbonyl isocyanates Hermann Hagemann 1988-10-11