Patents by Inventor Stefan Lehr

Stefan Lehr 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).

  • Patent number: 6645915
    Abstract: The invention relates to novel substituted 1,3,5-triazines of the general formula (I) in which A represents CHR3R4 or represents C1-halogenoalkyl-substituted C3-C6-cycloalkyl, C3-C6-alkinyl or C1-C4-cyanoalkyl, where R1, R2, R3 and R4 are each as defined in the description, and to processes for their preparation, to novel intermediates, including their preparation, and to the use of the compounds of the general formula (I) as herbicides.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: November 11, 2003
    Assignees: Nihon Bayer Agrochem K. K., Bayer Aktiengesellschaft
    Inventors: Hans-Jochem Riebel, Akihiko Yanagi, Yukiyoshi Watanabe, Toshio Goto, Kristian Kather, Stefan Lehr, Katharina Voigt, Mark Wilhelm Drewes, Peter Dahmen, Dieter Feucht, Rolf Pontzen
  • Patent number: 6638979
    Abstract: The present invention relates to novel imidamide derivatives of the formula (I) in which R, R1, R2 and R3 are each as defined in the description, to a process for their preparation and to their use for controlling animal pests, such as insects, arachnids and, in particular, nematodes.
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: October 28, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Jochem Riebel, Peter Gerdes, Ernst-Rudolf F. Gesing, Achim Hense, Johannes Kanellakopulos, Kristian Kather, Rolf Kirsten, Stefan Lehr, Lothar Rohe, Katharina Voigt, Detleff Wollweber, Wolfram Andersch
  • Patent number: 6610631
    Abstract: The invention relates to novel substituted aryl ketones of the general formula (I) in which n, A, R1, R2, R3, R4 and Z are each as defined in the description, to processes for their preparation and to their use as herbicides.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: August 26, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus-Helmut Müller, Stefan Lehr, Otto Schallner, Hans-Georg Schwarz, Mark Wilhelm Drewes, Peter Dahmen, Dieter Feucht, Rolf Pontzen
  • Publication number: 20030153465
    Abstract: The invention relates to novel substituted aryl ketones of the general formula (I) 1
    Type: Application
    Filed: July 15, 2002
    Publication date: August 14, 2003
    Inventors: Otto Schallner, Stefan Lehr, Hans-Georg Schwarz, Klaus-Helmut Muller, Dorothee Hoischen, Mark Wilhelm Drewes, Peter Dahmen, Dieter Feucht, Rolf Pontzen, Akihiko Yanagi, Shinichi Narabu, Toshio Goto
  • Publication number: 20030119674
    Abstract: The invention relates to novel substituted benzoylcyclohexanediones of the general formula (I) 1
    Type: Application
    Filed: June 21, 2002
    Publication date: June 26, 2003
    Inventors: Klaus-Helmut Muller, Hans-Georg Schwarz, Stefan Lehr, Otto Schallner, Dorothee Hoischen, Mark Wilhelm Drewes, Peter Dahmen, Dieter Feucht, Rolf Pontzen
  • Publication number: 20030100613
    Abstract: The present invention relates to novel substituted imide derivatives of the general formula (I) 1
    Type: Application
    Filed: July 26, 2002
    Publication date: May 29, 2003
    Inventors: Hans-Jochem Riebel, Stefan Herrmann, Achim Hense, Ernst-Rudolf Gesing, Kristian Kather, Stefan Lehr, Wolfram Andersch, Mark Wilhelm Drewes, Dieter Feucht, Achim Harder
  • Patent number: 6440903
    Abstract: The invention relates to novel substituted 2,4-diamino-1,3,5-triazines of the formula (I) (in which R1, R2, R3, X and Z are each as described in the description), to processes and to novel intermediates for their preparation and to their use as herbicides.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: August 27, 2002
    Assignees: Bayer Aktiengesellschaft, Nihon Bayer Agrochem K.K.
    Inventors: Hans-Jochem Riebel, Stefan Lehr, Uwe Stelzer, Yukiyoshi Watanabe, Markus Dollinger, Seishi Ito, Toshio Goto, Akihiko Yanagi
  • Patent number: 6420313
    Abstract: The invention relates to novel thienylalkylamino-1,3,5-triazines of the general formula (I) in which A, R1, R2, R3, R4, R5 and Z are as defined in the description, to processes for their preparation, to their use as herbicides and to novel intermediates and their preparation.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: July 16, 2002
    Assignees: Bayer Aktiengesellschaft, Nihon Bayer Agrochem, K.K.
    Inventors: Rolf Kirsten, Hans-Jochem Riebel, Stefan Lehr, Katharina Voigt, Kristian Kather, Mark Wilhelm Drewes, Markus Dollinger, Ingo Wetcholowsky, Yukiyoshi Watanabe, Toshio Goto
  • Patent number: 6407041
    Abstract: The invention relaters to compounds of the formula: and their use as herbicides.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: June 18, 2002
    Assignees: Bayer Aktiengesellschaft, Nihon Bayer Agrochem, K.K.
    Inventors: Katharina Voigt, Hans-Jochem Riebel, Stefan Lehr, Andreas Lender, Rolf Kirsten, Markus Dollinger, Mark Wilhelm Drewes, Ingo Wetcholowsky, Yukiyoshi Watanabe, Toshio Goto, Randy Allen Myers
  • Patent number: 6403794
    Abstract: The invention relates to novel substituted 2-amino-4-alkylamino-1,3,5-triazines of the formula (I) in which R1 represents in each case optionally substituted alkyl having 2 to 6 carbon atoms or cycloalkyl having 3 to 6 carbon atoms, R2 represents hydrogen or represents alkyl having 1 to 4 carbon atoms, A represents oxygen or methylene, Ar represents in each case optionally substituted phenyl, naphthyl or heterocyclyl, and Z represents hydrogen, represents halogen or represents in each case optionally substituted alkyl, alkoxy, alkylcarboxyl, alkoxycarbonyl, alkylthio, alkylsulphinyl, alkylsulphonyl, alkenyl or alkinyl, to processes and to novel intermediates for their preparation and to their use as herbicides.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: June 11, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Jochem Riebel, Stefan Lehr, Uwe Stelzer, Yukiyoshi Watanabe, Markus Dollinger
  • Patent number: 6399541
    Abstract: The invention relates to novel substituted 2,4-diamino-1,3,5-triazines of the formula (I) in which R1 represents (in each case unsubstituted) phenyl or naphthyl R2 represents alkyl, R3 represents hydrogen, represents halogen or represents in each case optionally substituted alkyl, alkoxy, alkylthio, alkylsulphinyl or alkylsulphonyl, R4 represents hydrogen, represents halogen or represents optionally substituted alkyl, R5 represents hydrogen, represents halogen or represents optionally substituted alkyl, and R6 represents hydrogen or represents in each case optionally substituted alkyl, alkylcarbonyl or alkylsulphonyl, (but where the compound 2-amino-4-(1-phenyl-ethylamino)-6-trifluoromethyl-1,3,5-triazine is excluded), to processes for preparing the novel compounds and to their use as herbicides.
    Type: Grant
    Filed: October 18, 1999
    Date of Patent: June 4, 2002
    Assignees: Bayer Aktiengesellschaft, Nihon Bayer Agrochem, K.K.
    Inventors: Hans-Jochem Riebel, Stefan Lehr, Uwe Stelzer, Markus Dollinger, Hans-Joachim Santel, Peter Dahmen, Toshio Goto, Yukiyoshi Watanabe
  • Patent number: 6358886
    Abstract: The invention relates to novel substituted optically active aminotriazines having at least two asymmetrically substituted carbon atoms of the formula (I), in which A represents a single bond or represents in each case straight-chain or branched alkanediyl or oxaalkanediyl having in each case up to 6 carbon atoms, Z represents certain carbocyclic or heterocyclic radicals and the substituents R1, R2, R3, R4 and Y are as defined in the description,  with the proviso that in each individual case R2, R3 and Y are different from one another and that the substituents at the two carbon atoms to which R2 and R3 or R4 are attached are configured as follows: (a) R configuration at the carbon atom to which R2 and R3 are attached and R configuration at the carbon atom to which R4 is attached (“R,R-diastereomers”), (b) R configuration at the carbon atom to which R2 and R3 are attached and S configuration at the carbon atom to which R4 is attached (“R,S-diastereomers”), (
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: March 19, 2002
    Assignees: Bayer Aktienegesellschaft, Nihon Bayer Agrochem KK
    Inventors: Hans-Jochem Riebel, Stefan Lehr, Katharina Voigt, Markus Dollinger, Mark Wilhelm Drewes, Ingo Wetcholowsky, Randy Allen Myers, Yukiyoshi Watanabe, Toshio Goto
  • Patent number: 6348435
    Abstract: The invention relates to novel substituted 2,4-diamino-1,3,5-triazines of the formula (I) in which R1 represents, for exampe, H or C1-C6-alkyl, R2 represents, for example, H, C1-C6-alkyl or —CO—R6, R3 represents, for example, H, C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkinyl or C3-C6-cycloalkyl, R4 represents, for example, H, C1-C6-alkyl or C3-C6-cycloalkyl, R5 represents one of the groupings below, where R6 represents, for example, C1-C6-alkyl, C1-C6-alkoxy or C2-C6-alkenyl, R7 to R12 represents, for example, H or certain organic radicals and Q represents O or S, to processes and novel intermediates for their preparation and to their use as herbicides.
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: February 19, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Jochem Riebel, Stefan Lehr, Uwe Stelzer, Markus Dollinger, Mark Wilhelm Drewes, Randy Allen Meyers
  • Patent number: 6346503
    Abstract: The invention relates to novel substituted 2-amino-4-alkylamino-1,3,5-triazines of the formula (I) in which R1 represents in each case optionally substituted alkyl having 2 to 6 carbon atoms or cycloalkyl having 3 to 6 carbon atoms, R2 represents hydrogen or represents alkyl having 1 to 4 carbon atoms, A represents oxygen or methylene, Ar represents in each case optionally substituted phenyl, naphthyl or heterocyclyl, and Z represents hydrogen, represents halogen or represents in each case optionally substituted alkyl, alkoxy, alkylcarboxyl, alkoxycarbonyl, alkylthio, alkylsulphinyl, alkylsulphonyl, alkenyl or alkinyl, to processes and to novel intermediates for their preparation and to their use as herbicides.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: February 12, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Jochem Riebel, Stefan Lehr, Uwe Stelzer, Yukiyoshi Watanbe, Markus Dollinger
  • Publication number: 20020016459
    Abstract: The invention relates to novel substituted 2-amino-4-alkylamino-1,3,5-triazines of the formula (I) 1
    Type: Application
    Filed: April 5, 2001
    Publication date: February 7, 2002
    Inventors: Hans-Jochem Riebel, Stefan Lehr, Uwe Stelzer, Yukiyoshi Watanabe, Markus Dollinger
  • Patent number: 6284710
    Abstract: The invention relates to novel substituted 2-amino-4-alkylamino-1,3,5-triazines of the formula (I) in which R1 represents optionally substituted methyl, R2 represents hydrogen or alkyl, Y represents in each case optionally substituted benzyl, naphthylmethyl, heterocyclylmethyl or heterocyclyloxy, and Z represents hydrogen, represents halogen or represents in each case optionally substituted alkyl, alkoxy, alkylcarboxyl, alkoxycarbonyl, alkylthio, alkylsulphinyl, alkylsulphonyl, alkenyl or alkinyl, to processes and to novel intermediates for their preparation and to their use as herbicides.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: September 4, 2001
    Assignees: Bayer Aktiengesellschaft, Nihon Bayer Agrochem K.L.
    Inventors: Hans-Jochem Riebel, Stefan Lehr, Uwe Stelzer, Yukiyoshi Watanabe, Markus Dollinger, Peter Dahmen, Seishi Ito, Toshio Goto, Akihiko Yanagi
  • Patent number: 6271178
    Abstract: The invention relates to novel substituted 2,4-diamino-1,3,5-triazines of the formula (I) In which R1 represents hydrogen or optionally substitued alkyl, R2 represents formyl or represents in each case optionally substituted alkylcarbonyl, alkoxycarbonyl, alkylsulphonyl, arylcarbonyl or arylsulphonyl, R3 represents in each case optionally substituted alkyl or cycloalkyl, R4 represents hydrogen or alkyl, A represents oxygen or methylene, Ar represents in each case optionally substituted aryl or heterocyclyl, and z represents hydrogen, hydroxyl, cyano, nitrogen, halogen or represents in each case optionally substituted alkyl, alkoxy, alkylcarbonyl, alkoxycarbonyl, alkylthio, alkylsulphinyl, alkylsulphonyl, alkenyl or alkinyl, (except for three prior-art compounds), to processes and to novel intermediates for preparation of the novel compounds and to their use as herbicides.
    Type: Grant
    Filed: April 7, 1999
    Date of Patent: August 7, 2001
    Assignees: Bayer AG, Nihon Bayer Agrochem K.K.
    Inventors: Hans-Jochem Riebel, Stefan Lehr, Uwe Stelzer, Yukiyoshi Watanabe, Markus Dollinger, Toshio Goto