Patents by Inventor Michael Gerhard Hoffmann

Michael Gerhard Hoffmann 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).

  • PYRIMIDIN-4-YLPROPANEDINITRILE DERIVATIVES, PROCESSES FOR THEIR PREPARATION AND THEIR USE AS HERBICIDES AND PLANT GROWTH REGULATORS
    Publication number: 20100240536
    Abstract: Pyrimidin-4-ylpropanedinitrile derivatives, process for their preparation and their use as herbicides and plant growth regulators The invention relates to compounds of the formula (I) and N-oxides, tautomers and agrochemically compatible salts thereof to processes for their preparation, and to their use as herbicides and plant growth regulators, in particular as herbicides for the selected control of harmful plants in useful plant crops.
    Type: Application
    Filed: March 16, 2010
    Publication date: September 23, 2010
    Applicant: BAYER CROPSCIENCE AG
    Inventors: Marco Brünjes, Hansjörg Dietrich, Hartmut Ahrens, Michael Gerhard Hoffmann, Jan Dittgen, Dieter Feucht, Christopher Hugh Rosinger, Isolde Häuser-Hahn
  • Substituted 4-(4-trifluoromethylpyrazolyl)pyrimidines
    Patent number: 7312180
    Abstract: A description is given of 4-(4-trifluoromethylpyrazolyl)pyrimidines of the formula (I) and of their use as herbicides. In this general formula (I), R1, R2, R3 and R4 are various radicals and Y is an aromatic or heteroaromatic radical.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: December 25, 2007
    Assignee: Bayer CropScience GmbH
    Inventors: Michael Gerhard Hoffmann, Hendrik Helmke, Lothar Willms, Thomas Auler, Heinz Kehne, Martin Hills, Dieter Feucht
  • 4-trifluoromethylpyrazolyl-substituted pyridines and pyrimidines
    Patent number: 7282469
    Abstract: A description is given of 4-trifluoromethylpyrazolyl-substituted pyridines and pyrimidines of the formula (I) and of their use as herbicides. In this formula (I), R1, R2, R3 and R4 stand for various radicals, A for an aromatic or heteroaromatic radical, and Z denotes a nitrogen or carbon atom.
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: October 16, 2007
    Assignee: Bayer CropScience GmbH
    Inventors: Michael Gerhard Hoffmann, Hendrik Helmke, Lothar Willms, Thomas Auler, Hermann Bieringer, Hubert Menne
  • 4-trifluoromethylpyrazolyl-substituted pyridines and pyrimidines
    Patent number: 7022650
    Abstract: A description is given of 4-trifluoromethylpyrazolyl-substituted pyridines and pyrimidines of formula (I) and of their use as herbicides. In this formula (I) R1, R2, R3 and R4 are various radicals, A is an aromatic or heteroaromatic radical, and Z is a nitrogen or carbon atom.
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: April 4, 2006
    Assignee: Bayer CropScience GmbH
    Inventors: Michael Gerhard Hoffmann, Hendrik Helmke, Lothar Willms, Thomas Auler, Hermann Bieringer, Hubert Menne
  • Substituted phenyl derivatives
    Patent number: 6750222
    Abstract: The present invention relates to compounds of the formula (I) and/or salts thereof where R1, R2, A, B, X and Y are as defined in claim 1. The compounds according to the invention are suitable for use as herbicides and plant growth regulators.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: June 15, 2004
    Assignee: Bayer CropScience GmbH
    Inventors: Hendrik Helmke, Michael Gerhard Hoffmann, Klaus Haaf, Lothar Willms, Thomas Auler, Hermann Bieringer, Hubert Menne
  • 4-trifluoromethylpyrazolyl-substituted pyridines and pyrimidines
    Publication number: 20040072692
    Abstract: A description is given of 4-trifluoromethylpyrazolyl-substituted pyridines and pyrimidines of formula (I) and of their use as herbicides.
    Type: Application
    Filed: July 24, 2003
    Publication date: April 15, 2004
    Inventors: Michael Gerhard Hoffmann, Hendrik Helmke, Lothar Willms, Thomas Auler, Hermann Bieringer, Hubert Menne
  • Substituted phenyl derivatives
    Publication number: 20030228982
    Abstract: The present invention relates to compounds of the formula (I) and/or salts thereof 1
    Type: Application
    Filed: December 13, 2002
    Publication date: December 11, 2003
    Inventors: Hendrik Helmke, Michael Gerhard Hoffmann, Klaus Haaf, Lothar Willms, Thomas Auler, Hermann Bieringer, Hubert Menne