Patents by Inventor Ralf Wischnat

Ralf Wischnat has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Phenyl-substituted 2-enamino-ketonitriles
    Publication number: 20060100106
    Abstract: The present invention relates to novel phenyl-substituted 2-enamino-ketonitriles of the formula (I): in which Ar, X, Z, Y and K are each as defined in the description, to a plurality of processes for their preparation and to their use as herbicides and pesticides.
    Type: Application
    Filed: December 19, 2005
    Publication date: May 11, 2006
    Inventors: Reiner Fischer, Jutta Bohmer, Ralf Wischnat, Mark Drewes, Peter Dahmen, Rolf Pontzen, Peter Losel, Christoph Erdelen, Dieter Feucht
  • Aryl-substituted heterocyclic enaminones
    Publication number: 20060069253
    Abstract: The invention relates to novel heterocyclic enaminones of the general formula (I) in which Ar, Z, K, X, y1, Y2, Y3, Y4, Y5, Y6 and V are as defined in the description, to their use as herbicides, acaricides and insecticides, and to processes for their preparation.
    Type: Application
    Filed: November 14, 2005
    Publication date: March 30, 2006
    Inventors: Reiner Fischer, Ralf Wischnat, Jutta Bohmer, Axel Trautwein, Jurgen Wiedemann, Udo Schneider, Hermann Hagemann, Mark Drewes, Peter Dahmen, Rolf Pontzen, Dieter Feucht, Christoph Erdelen, Peter Losel
  • Substituted phenyluracils
    Patent number: 6992044
    Abstract: The invention relates to novel substituted phenyl uracils of the formula (I) in which R1 represents hydrogen, amino or in each case optionally substituted alkyl, alkenyl or alkynyl, R2 represents cyano, carboxy, carbamoyl, thiocarbamoyl or optionally substituted alkyl or alkoxycarbonyl, R3 represents hydrogen, halogen or optionally substituted alkyl, R4 represents hydrogen, nitro, cyano, alkoxy or halogen, R5 represents cyano, thiocarbamoyl, halogen or optionally substituted alkyl or alkoxy and R6 represents an optionally substituted nitrogen-containing heterocyclic group which is attached to R6 via N, to processes for their preparation, to their use as crop treatment agents, and to intermediates and processes for their preparation.
    Type: Grant
    Filed: October 8, 2001
    Date of Patent: January 31, 2006
    Assignee: Bayer CropScience AG
    Inventors: Roland Andree, Hans-Georg Schwarz, Udo Schneider, Ralf Wischnat, Mark Wilhelm Drewes, Peter Dahmen, Dieter Feucht, Rolf Pontzen
  • Phenyl substituted 4-hydroxy tetrahydroxypyridone
    Patent number: 6974827
    Abstract: The present invention relates to novel compounds of the formula (I) in which W, X, Y, Z, G, A, B, Q1, Q2 and D are each as defined in the description, to a plurality of processes for their preparation and to their use as pesticides and herbicides.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: December 13, 2005
    Assignee: Bayer Aktiengesellschaft
    Inventors: Reiner Fischer, Alan Graff, Axel Trautwein, Astrid Ullmann, Udo Schneider, Ralf Wischnat, Mark Wilhelm Drewes, Christoph Erdelen, Dieter Feucht
  • Condensation reagents and a process for their preparation
    Publication number: 20050267174
    Abstract: The present invention relates to new bromo- and chlorothiazolium salts of the formula (I) in which R1, R2, R3, R4, n and X have the meaning indicated in the disclosure, a process for their preparation, their use as condensation reagents, particularly as peptide coupling reagents, and intermediates for the preparation of these compounds.
    Type: Application
    Filed: August 3, 2005
    Publication date: December 1, 2005
    Inventors: Joachim Rudolph, Ralf Wischnat
  • Phenyl-substituted 4-hydroxy-tetrahydropyridones
    Publication number: 20050256089
    Abstract: The present invention relates to novel compounds of the formula (I) in which W, X, Y, Z, G, A, B, Q1, Q2 and D are each as defined in the disclosure, to a plurality of processes for their preparation and to their use as pesticides and herbicides.
    Type: Application
    Filed: July 19, 2005
    Publication date: November 17, 2005
    Inventors: Reiner Fischer, Alan Graff, Axel Trautwein, Astrid Ullmann, Udo Schneider, Ralf Wischnat, Mark Drewes, Christoph Erdelen, Dieter Feucht
  • Substituted 2-thio-3,5-dicyano-4-phenyl-6-aminopyridines and the use of the same
    Publication number: 20050227972
    Abstract: Compounds of the formula (I) a process for their preparation and their use as medicaments are described.
    Type: Application
    Filed: November 28, 2002
    Publication date: October 13, 2005
    Applicant: Bayer Healthcare AG
    Inventors: Ulrich Rosentreter, Thomas Kramer, Mitsuyuki Shimada, Walter Hubsch, Nicole Diedrichs, Thomas Krahn, Kerstin Henninger, Johannes-Peter Stasch, Ralf Wischnat
  • Phenyl-substituted 5,6-dihydropyrone derivatives for use as pesticides and herbicides
    Patent number: 6906007
    Abstract: The present invention relates to novel phenyl-substituted 5,6-dihydro-pyrone derivatives of the formula (I) in which W, X, Y, Z, G, A, B, Q1 and Q2 are each as defined in the description, to a plurality of processes for their preparation and to their use as pesticides and herbicides.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: June 14, 2005
    Assignee: Bayer CropScience AG
    Inventors: Reiner Fischer, Alan Graff, Folker Lieb, Astrid Ullmann, Axel Trautwein, Ralf Wischnat, Udo Schneider, Mark Wilhelm Drewes, Christoph Erdelen, Peter Dahmen, Dieter Feucht, Rolf Pontzen
  • Pyrazolyl-substituted heterocycles and their use as phytosanitary products
    Publication number: 20040242664
    Abstract: The present invention relates to novel pyrazolyl-substituted heterocycles of the formula (I) 1
    Type: Application
    Filed: April 19, 2004
    Publication date: December 2, 2004
    Inventors: Reiner Fischer, Astrid Ullmann, Thomas Bretschneider, Axel Trautwein, Ralf Wischnat, Christoph Erdelen, Angelika Lubos-Erdelen, Dieter Feucht, Mark Wilhelm Drewes
  • Phenyl-substituted 5,6-dihydrophyne derivatives for use as pesticides and herbicides
    Publication number: 20040102516
    Abstract: The present invention relates to novel phenyl-substituted 5,6-dihydro-pyrone derivatives of the formula (I) 1
    Type: Application
    Filed: May 6, 2003
    Publication date: May 27, 2004
    Inventors: Reiner Fischer, Alan Graff, Folker Lieb, Astrid Ullmann, Axel Trautwein, Ralf Wischnat, Udo Schneider, Mark Wilhelm Drewes, Christoph Erdelen, Peter Dahmen, Dieter Feucht, Rolf Pontzen
  • N-alkylated thiazolium salts and process for their preparation
    Publication number: 20040019219
    Abstract: The present invention relates to N-alkylated thiazolium salts, to a process for their preparation and also to their use as condensation and dehydrating agents.
    Type: Application
    Filed: June 10, 2003
    Publication date: January 29, 2004
    Inventors: Ralf Wischnat, Joachim Rudolph
  • Phenyl-substituted-2enamino-keto nitriles
    Publication number: 20030220196
    Abstract: The present invention relates to novel phenyl-substituted 2-enamino-ketonitriles of the formula (I): 1
    Type: Application
    Filed: November 5, 2002
    Publication date: November 27, 2003
    Inventors: Reiner Fischer, Jutta Bohmer, Ralf Wischnat, Mark Wilhelm Drewes, Peter Dahmen, Rolf Pontzen, Peter Losel, Christoph Erdelen, Dieter Feucht
  • Phenyl substituted 4-hydroxy tetrahydroxypyridone
    Publication number: 20030176464
    Abstract: The present invention relates to novel compounds of the formula (I) 1
    Type: Application
    Filed: October 9, 2002
    Publication date: September 18, 2003
    Inventors: Reiner Fischer, Alan Graff, Axel Trautwein, Astrid Ullmann, Udo Schneider, Ralf Wischnat, Mark Wilhelm Drewes, Christoph Erdelen, Dieter Feucht
  • Phenyl-substituted cyclic enaminones
    Publication number: 20030130125
    Abstract: The present invention relates to novel phenyl-substituted cyclic enaminones of the formula (I): 1
    Type: Application
    Filed: July 26, 2002
    Publication date: July 10, 2003
    Inventors: Reiner Fischer, Ralf Wischnat, Mark Wilhelm Drewes, Markus Dollinger, Christoph Erdelen, Dieter Feucht, Ingo Wetcholowsky, Ulrike Wachendorff-Neumann, Ulrich Philipp, Olga-Tatjana Rauch
  • Condensation reagents and a process for their preparation
    Publication number: 20020156287
    Abstract: The present invention relates to new bromo- and chlorothiazolium salts of the formula (I) 1
    Type: Application
    Filed: December 18, 2001
    Publication date: October 24, 2002
    Inventors: Joachim Rudolph, Ralf Wischnat
  • Phenyl-substituted cyclic enaminones
    Patent number: 6455472
    Abstract: The present invention relates to novel phenyl-substituted cyclic enaminones of the formula (I): in which Ar, X, Z, Y, K, n and m are each as defined in the description, to a plurality of processes and intermediates for their preparation and to their use as herbicides and pesticides.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: September 24, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Reiner Fischer, Ralf Wischnat, Mark Wilhelm Drewes, Markus Dollinger, Christoph Erdelen, Dieter Feucht, Ingo Wetcholowsky, Ulrike Wachendorff-Neumann, Ulrich Philipp, Olga-Tatjana Rauch