Patents by Inventor Peter Gerdes

Peter Gerdes 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).

  • Method for preparing optionally substituted benzofuranones
    Patent number: 6194590
    Abstract: The invention relates to an improved method for preparing optionally substituted benzofuran-3-ones which can be used as initial products for preparing 3-(1-hydroxyphenyl-1-alkoximinomethyl) dioxazines. These later are known starting materials for preparing compounds with fungicidal properties.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: February 27, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernd Gallenkamp, Peter Gerdes, Herbert Gayer, Lothar Rohe, Lubbertus Mulder
  • Oxime derivatives and their use as pesticides
    Patent number: 6177463
    Abstract: The invention relates to new oxime derivatives, to a plurality of processes for their preparation, and to their use as pesticides.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: January 23, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Gerdes, Herbert Gayer, Bernd-Wieland Kr{umlaut over (u)}ger, Bernd Gallenkamp, Heinz-Wilhelm Dehne, Stefan Dutzmann, Gerd H{umlaut over (a)}nssler, Klaus Stenzel
  • Substituted heterocyclic compounds and their use as fungicides
    Patent number: 6177459
    Abstract: The invention relates to novel substituted heterocyclic compounds, to a plurality of processes for their preparation and to their use as fungicides, and to novel intermediates, to a plurality of processes for their preparation and to their use as fungicides.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: January 23, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Herbert Gayer, Bernd-Wieland Kr{umlaut over (u)}ger, Dietmar Kuhnt, Ulrich Heinemann, Peter Gerdes, Ralf Tiemann, Gerd Hanssler, Klaus Stenzel, Stefan Dutzmann
  • Process for preparing 3-(1-hydroxyphenyl-1-alkoximinomethyl) dioxazines
    Patent number: 6150521
    Abstract: The present invention relates to a plurality of novel processes and novel intermediates for preparing 3-(1-hydroxyphenyl-1-alkoximinomethyl)dioxazines, which are known as intermediates for preparing compounds having fungicidal properties (WO 95-04728).
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: November 21, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Herbert Gayer, Bernd Gallenkamp, Peter Gerdes, Ulrich Heinemann, Bernd-Wieland Kruger, Reinhard Lantzsch, Thomas Seitz, Uwe Stelzer
  • Substituted cycloalkenes, process of preparing them and method of using them as pesticides
    Patent number: 6150374
    Abstract: The invention relates to novel substituted cycloalkenes of the formula (I), ##STR1## to a plurality of processes for their preparation, and to novel intermediates and a plurality of processes for their preparation.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: November 21, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Herbert Gayer, Peter Gerdes, Ralf Tiemann, Stefan Dutzmann, Klaus Stenzel
  • Sulphonyloxadiazolones and their use as microbicides
    Patent number: 6136830
    Abstract: Novel sulphonyloxadiazolones of the formula ##STR1## in which A represents oxygen, sulphur, --SO--, --SO.sub.2 -- or ##STR2## where R.sup.3 represents hydrogen or alkyl,R.sup.1 represents optionally substituted cycloalkyl, optionally substituted cycloalkenyl or optionally substituted aryl andR.sup.2 represents optionally substituted heterocyclyl,a process for preparing these substances and their use as microbicides in crop protection and in the protection of materials.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: October 24, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Lutz Assmann, Peter Gerdes, Klaus Stenzel
  • Halogen pyrimidines and its use thereof as parasite abatement means
    Patent number: 6103717
    Abstract: Compounds of the formula (I) ##STR1## in which A represents optionally substituted alkanediyl,R represents in each case optionally substituted cycloalkyl, aryl or benzo-fused heterocyclyl,E represents --CH.dbd. or nitrogen,Q represents oxygen, sulphur, --CH.sub.2 --O--, a single bond, or a nitrogen atom which is optionally substituted by alkyl, andX represents halogen.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: August 15, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ulrich Heinemann, Herbert Gayer, Peter Gerdes, Bernd-Wieland Kruger, Bernd Gallenkamp, Uwe Stelzer, Albrecht Marhold, Ralf Tiemann, Stefan Dutzmann, Gerd Hanssler, Klaus Stenzel
  • Sulphonyloxadiazolones
    Patent number: 6100281
    Abstract: Novel sulphonyloxadiazolones of the formula ##STR1## in which A represents oxygen, sulphur, --SO--, --SO.sub.2 -- or ##STR2## where R.sup.3 represents hydrogen or alkyl,R.sup.1 represents optionally substituted cycloalkyl, optionally substituted cycloalkenyl or optionally substituted aryl andR.sup.2 represents in each case optionally substituted alkyl, alkenyl, dialkylamino or aryla process for preparing these substances and their use as microbicides in crop protection and in the protection of materials.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: August 8, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Lutz Assmann, Peter Gerdes, Klaus Stenzel, Chuan-Zheng Deng, Li-Ping Yuan, Jian-Mei Zhao
  • Process for preparing 3-(1-hydroxyphenyl-1-alkoximinomethyl) dioxazines
    Patent number: 6093837
    Abstract: The present invention relates to a novel process for preparing 3-(1-hydroxyphenyl-1-alkoximinomethyl)dioxazines which are known as intermediates for preparing compounds having fungicidal properties (WO 95-04728). Furthermore, the invention relates to novel 3-(1-hydroxyphenyl-1-alkoximinomethyl)dioxazines, to novel intermediates for their preparation and to a plurality of processes for preparing the novel intermediates.
    Type: Grant
    Filed: November 5, 1998
    Date of Patent: July 25, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernd Gallenkamp, Lothar Rohe, Herbert Gayer, Peter Gerdes
  • Use of sulfonyloxadiazolones as microbicides
    Patent number: 6090831
    Abstract: Sulphonyloxadiazolones of the formula ##STR1## in which A represents a single bond or represents alkanediyl, alkenediyl, alkinediyl or a grouping --*O--CH.sub.2 --, --*O--CH.sub.2 --CH.sub.2 --, --*CH.sub.2 --O--, --*CH.sub.2 --O--CH.sub.2 --CH.sub.2 --, --*CH.sub.2 --S--, --*S--CH.sub.2 --, ##STR2## or ##STR3## where the atom labelled by * is in each case attached to R.sup.1 andR.sup.3 represents hydrogen or alkyl,R.sup.1 represents hydrogen, optionally substituted cycloalkyl, optionally substituted cycloalkenyl, optionally substituted aryl or optionally substituted heterocyclyl andR.sup.2 represents in each case optionally substituted alkyl, alkenyl, dialkylamino, aryl or heterocyclyl,are highly suitable for controlling undesirable microorganisms in crop protection and in the protection of materials.Novel sulphonyloxadiazolones of the formula ##STR4## in which A and R.sup.1 are as defined above andR.sup.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: July 18, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Lutz Assmann, Peter Gerdes, Klaus Stenzel
  • Alkoxyacrylic acid thiol esters used as fungicides
    Patent number: 6054621
    Abstract: The invention relates to novel alkoxyacrylic thiol esters, to a plurality of processes for their preparation and to their use as fungicides, and to novel intermediates and to a plurality of processes for their preparation.
    Type: Grant
    Filed: February 10, 1998
    Date of Patent: April 25, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Herbert Gayer, Peter Gerdes, Ulrich Heinemann, Bernd-Wieland Kruger, Ralf Tiemann, Klaus Stenzel, Stefan Dutzmann, Gerd Hanssler
  • Fluoromethoxyacrylic acid derivatives and their use as pest control agents
    Patent number: 6031107
    Abstract: The invention relates to new fluoromethoxyacrylic acid derivatives, a process for their preparation and their use as pesticides, as well as to new intermediates and a plurality of processes for their preparation.It has already been disclosed that certain fluoromethoxyacrylic acid derivatives which are similar in constitution to the compounds described below have fungicidal properties (compare, for example, WO 9517376). The fungicidal action of these compounds, however, is unsatisfactory in many cases.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: February 29, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ulrich Heinemann, Herbert Gayer, Peter Gerdes, Albrecht Marhold, Uwe Stelzer, Ralf Tiemann, Klaus Stenzel, Stefan Dutzmann
  • Hydroxamic-acid derivatives, method of preparing them and their use as fungicides
    Patent number: 6008257
    Abstract: Hydroxamic derivatives of the formula (I): ##STR1## in which A represents hydrogen or a grouping which can be readily eliminated;A.sup.1 represents hydrogen or alkyl;Ar represents optionally substituted arylene or heteroarylene;E represents a 1-alkene-1,1-diyl grouping which contains a radical R.sup.1 in the 2-position, or represents a 2-aza-1-alkene-1,1-diyl grouping which contains a radical R.sup.2 in the 2-position, or represents an optionally substituted imino grouping ("azamethylone", N--R.sup.3);G represents a bridge member as defined herein; andZ represents in each case optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, aryl or heterocyclyl;are useful as fungicides. Also disclosed is a process for preparing the compounds of formula (I).
    Type: Grant
    Filed: August 21, 1997
    Date of Patent: December 28, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernd-Wieland Kruger, Lutz Assmann, Herbert Gayer, Peter Gerdes, Ulrich Heinemann, Dietmar Kuhnt, Thomas Seitz, Bernd Gallenkamp, Ralf Tiemann, Gerd Hanssler, Heinz-Wilhelm Dehne, Stefan Dutzmann
  • Process for preparing 3-(1-hydroxyphenyl-1-alkoximinomethyl) dioxazines
    Patent number: 6005104
    Abstract: The present invention relates to a novel process for preparing 3-(1-hydroxyphenyl-1-alkoximinomethyl)dioxazines which are known as intermediates for preparing compounds having fungicidal properties (WO 95-04728). Furthermore, the invention relates to novel 3-(1-hydroxyphenyl-1-alkoximinomethyl)dioxazines, to novel intermediates for their preparation and to a plurality of processes for preparing the novel intermediates.
    Type: Grant
    Filed: December 2, 1997
    Date of Patent: December 21, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernd Gallenkamp, Lothar Rohe, Herbert Gayer, Peter Gerdes
  • Oximether and acrylic acid derivatives and their use as fungicides
    Patent number: 5977123
    Abstract: The invention relates to novel oximether and acrylic acid derivatives of the formula (I) ##STR1## in which Z, G, Ar, E, R.sup.1 and R.sup.2 have the meanings as given in the specification, to processes for their preparation and to their use as fungicides.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: November 2, 1999
    Assignee: Bayer Aktiengesellscgaft
    Inventors: Peter Gerdes, Herbert Gayer, Ulrich Heinemann, Ralf Tiemann, Klaus Stenzel, Stefan Dutzmann
  • Substituted azadioxacycloalkenes, fungicidal composition containing them, process for preparing them, and method of using them to combat fungi
    Patent number: 5883250
    Abstract: New azadioxacycloalkenes of the formula (I): ##STR1## wherein Z, G, Ar, E and A are as defined herein, fungicidal compositions containing them, processes for preparing them, and methods of using them to combat fungi.
    Type: Grant
    Filed: May 15, 1997
    Date of Patent: March 16, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernd-Wieland Kruger, Lutz Assmann, Herbert Gayer, Peter Gerdes, Ulrich Heinemann, Dietmar Kuhnt, Ulrich Philipp, Thomas Seitz, Jorg Stetter, Ralf Tiemann, Heinz-Wilhelm Dehne, Stefan Dutzmann, Gerd Hanssler
  • Substituted arylazadioxacyclo alkene fungicides
    Patent number: 5852013
    Abstract: The invention relates to novel substituted arylazadioxacycloalkenes, a plurality of processes for their preparation and to their use as fungicides.
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: December 22, 1998
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Gerdes, Herbert Gayer, Dietmar Kuhnt, Ralf Tiemann, Klaus Stenzel
  • 3-methoxy-phenyl-acrylic acid methyl esters
    Patent number: 5773445
    Abstract: The application describes new 3-methoxy-2-phenyl-acrylic esters of the formula (I) ##STR1## in which R and Y have the meanings given in the description,a process for their preparation, and their use as pesticides.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: June 30, 1998
    Assignee: Bayer Aktiengesellschaft
    Inventors: Herbert Gayer, Peter Gerdes, Otto Schallner, Stefan Dutzmann, Heinz-Wilhelm Dehne, Gerd Hanssler
  • 3-methoxy-2-phenylacrylic acid esters used as pest-control agents, especially as fungicides
    Patent number: 5728729
    Abstract: 3-Methoxy-2-phenyl-acrylic esters of the formula ##STR1## in which R represents optionally substituted alkyl, cycloalkyl or aryl andn represents a number 0 or 1,a process for their preparation and their use as pesticides.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: March 17, 1998
    Assignee: Bayer Aktiengesellschaft
    Inventors: Herbert Gayer, Peter Gerdes, Heinz-Wilhelm Dehne
  • Substituted azadioxacycloalkenes and their use as fungicides
    Patent number: 5679676
    Abstract: The application relates to new azadioxacycloalkenes of the formula (I) ##STR1## in which Z, G, Ar, E and A have the meaning given in the description, to a process for their preparation, and to their use as fungicides.
    Type: Grant
    Filed: February 5, 1996
    Date of Patent: October 21, 1997
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernd-Wieland Kruger, Lutz Assmann, Herbert Gayer, Peter Gerdes, Ulrich Heinemann, Dietmar Kuhnt, Ulrich Philipp, Thomas Seitz, Jorg Stetter, Ralf Tiemann, Heinz-Wilhelm Dehne, Stefan Dutzmann, Gerd Hanssler