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Reiner Fischer, Andreas Krebs, Folker Lieb, Michael Ruther, Jorg Stetter, Christoph Erdelen, Ulrike Wachendorff Neumann, Klaus Lurssen, Hans Joachim Santel, Robert R Schmidt: 3-aryl-pyrone derivatives. Bayer Aktiengesellschaft, William C Gerstenzang, February 28, 1995: US05393729 (22 worldwide citation)

The invention relates to 3-aryl-pyrone derivatives of the general formula (I) ##STR1## in which the substituents are as defined in the specification. The compounds are useful as pesticides, herbicides and fungicides.


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Uwe Petersen, Wilfried Schrock, Dieter Habich, Andreas Krebs, Thomas Schenke, Thomas Philipps, Klaus Grohe, Rainer Endermann, Klaus Dieter Bremm, Karl Georg Metzger: Quinolonecarboxylic acids. Bayer Aktiengesellschaft, Sprung Horn Kramer & Woods, January 2, 1996: US05480879 (16 worldwide citation)

The invention relates to novel derivatives of quinolonecarboxylic acid and naphthyridonecarboxylic acid which are linked to a .beta.-lactam antibiotic, to their salts, to processes for their preparation and to antibacterial agents containing these derivatives.


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Stephan Bartel, Andreas Krebs, Franz Kunisch, Uwe Petersen, Thomas Schenke, Klaus Grohe, Michael Schriewer, Klaus Dieter Bremm, Rainer Endermann, Karl Georg Metzger: Quinolone- and naphthyridonecarboxylic acid derivatives. Bayer Aktiengesellschaft, Sprung Horn Kramer & Woods, October 10, 1995: US05457104 (14 worldwide citation)

The invention relates to new quinolone- and naphthyridonecarboxylic acid derivatives which have hydrogen in the 6-position, to processes for their preparation, and to antibacterial compositions and feed additives containing them.


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Bernd Wieland Kruger, Reiner Fischer, Heinz Jurgen Bertram, Thomas Bretschneider, Stefan Bohm, Andreas Krebs, Thomas Schenke, Hans Joachim Santel, Klaus Lurssen, Robert R Schmidt, Christoph Erdelen, Ulrike Wachendorff Neumann, Wilhelm Stendel: 3-hydroxy-4-aryl-5-oxo-pyrozoline derivatives, compositions and use. Bayer Aktiengesellschaft, Sprung Horn Kramer & Woods, October 25, 1994: US05358924 (14 worldwide citation)

There are provided new 3-hydroxy-4-aryl-5-oxo-pyrazoline derivatives of the formula (I) ##STR1## in which A and B are identical or different and independently of one another in each case represent hydrogen, alkyl, alkenyl, alkynyl, alkoxyalkyl, alkythioalkyl, cycloalkyl or optionally substituted ary ...


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Uwe Petersen, Andreas Krebs, Thomas Schenke, Franz Kunisch, Thomas Philipps, Klaus Grohe, Klaus Dieter Bremm, Rainer Endermann, Karl Georg Metzger, Ingo Haller, Hans Joachim Zeiler: 7-isoindolinyl-quinolone-carboxylic acid derivatives. Bayer Aktiengesellschaft, Sprung Horn Kramer & Woods, November 7, 1995: US05464796 (13 worldwide citation)

The invention relates to new quinolone- and naphthyridonecarboxylic acid derivatives which are substituted in the 7-position by a partly hydrogenated isoindolinyl ring, processes for their preparation and antibacterial agents and feed additives containing these compounds.


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Andreas Krebs, Joachim Schaper, Wolfgang Gerteis, Michael Altenhofen, Torsten Leidig, Norbert Meder: E-learning course structure. SAP, Fish & Richardson P C, March 21, 2006: US07014467 (11 worldwide citation)

An e-learning course may include a number of structural elements that are aggregated into one or more levels. Each higher level may refer to any instance of a lower level. The structural elements include a course, a sub-course, a learning unit, or a knowledge item. The structural elements may includ ...


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Uwe Petersen, Thomas Himmler, Thomas Schenke, Andreas Krebs, Klaus Grohe, Klaus Dieter Bremm, Karl G Metzger, Rainer Endermann, Hans Joachim Zeiler: 8-vinyl- and 9-ethinyl-quinolone-carboxylic acids. Bayer Aktiengesellschaft, William C Sprung Horn Kramer & Woods Gerstenzang, November 21, 1995: US05468742 (9 worldwide citation)

The invention relates to new 8-vinyl- and 8-ethinylquinolonecarboxylic acids, process for their preparation, and antibacterial agents and feed additives containing them.