Patents by Inventor Wilhelm Stendel

Wilhelm Stendel 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: 4695563
    Abstract: Novel arthropodicidally active compounds of the formula ##STR1## in which R represents amino or optionally substituted radicals from the series comprising alkyl, alkylamino, methyl-alkylamino, alkoxy, alkenyloxy and alkylthio,R.sup.1 to R.sup.8 are identical or different and represent hydrogen or optionally halogen-substituted radicals from the series comprising alkyl, alkenyl, alkoxyalkyl and alkylthioalkyl, or represent halogen, nitro or dialkylaminoalkyl or represent optionally substituted phenyl or benzyl, and two of the radicals R.sup.1 to R.sup.8, together with the carbon atom or atoms to which they are bonded, may furthermore form an optionally substituted monocyclic or bicyclic ring, andn represents zero or 1.intermediates therefor wherein R is replaced by Cl are also novel.
    Type: Grant
    Filed: June 3, 1986
    Date of Patent: September 22, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernd-Wieland Kruger, Wolfgang Behrenz, Benedikt Becker, Bernhard Homeyer, Wilhelm Stendel
  • Patent number: 4681892
    Abstract: Insecticidally, arachnicidally and fungicidally active novel isoxazolidines of the formula ##STR1## in which n is 2 or 3,R.sup.1 is H or alkyl,R.sup.2 is optionally substituted alkyl, cycloalkyl, alkenyl, alkinyl, aryl or a heterocyclic radical which is optionally substituted, andA is a di- or trivalent aryl or heteroaryl radical which is optionally substituted by alkyl, cycloalkyl, aralkyl, alkoxy, alkylthio, aryloxy, arylthio, halogen, CN, OH, halogenoalkyl, halogenoalkoxy, halogenoalkylthio, alkoxyalkyl, optionally halogen-substituted methylenedioxy or ethylenedioxy.Some of the intermediates are also new.
    Type: Grant
    Filed: February 27, 1986
    Date of Patent: July 21, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Axel Ingendoh, Wolfgang Scheinert, Benedikt Becker, Kurt Halcour, Wilhelm Stendel
  • Patent number: 4678797
    Abstract: Substituted isoxazolidines of the formula ##STR1## in which R.sup.1 represents optionally substituted alkyl, cycloalkyl, aralkyl, aryl or heteroaryl or radicals of the formula --COR.sup.4,R.sup.4 represents optionally substituted alkyl, aryl, alkoxy, alkylthio, aroxy, arylthio, amino, alkylamino, dialkylamino, arylamino, arylalkylamino, diarylamino or cycloalkylamino, or optionally substituted heterocyclic radicals which are bonded via nitrogen,R.sup.2 represents hydrogen or the radicals mentioned for R.sup.1, it being possible for R.sup.1 and R.sup.2 to be identical or different, andR.sup.3 represents optionally substituted alkyl, cycloalkyl, alkenyl, alkinyl or aryl, or saturated heterocyclic radicals, which are optionally substituted,and acid salts thereof, are pesticidally active and increase animals' utilization of feed. Intermediates therefor are also new.
    Type: Grant
    Filed: May 10, 1985
    Date of Patent: July 7, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Axel Ingendoh, Friedrich Berschauer, Benedikt Becker, Wilhelm Stendel, Bernhard Homeyer, Martin Scheer, Anno de Jong, Gerd Hanssler, Paul Reinecke
  • Patent number: 4678776
    Abstract: Pesticidally active novel 2-pyridyl-thionophosphoric acid esters of the formula ##STR1## in which R is i-propyl or sec.-butyl,X each independently is halogen, andn is 0, 2, 3 or 4.
    Type: Grant
    Filed: December 6, 1985
    Date of Patent: July 7, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Fritz Maurer, Bernard Homeyer, Wilhelm Stendel
  • Patent number: 4631231
    Abstract: An article molded of at least one polymer selected from the group consisting of a polyvinyl resin, polyacrylate, epoxy resin, cellulose, cellulose derivative, polyamide and polyester and containing at least one pyrethroid selected from the group consisting of 3'-phenoxy-4'-fluoro-.alpha.-cyano-benzyl 2,2-dimethyl-3-(2"-p-chlorophenyl-2"-chlorovinyl)-cyclopropanecarboxylate, 3'-phenoxy-4'-fluoro-.alpha.-cyano-benzyl 2,2-dimethyl-3-(2",2"-dichlorovinyl)cyclopropane-carboxylate, pentafluorobenzyl permethrate, and isomers thereof. Such articles are especially useful in combating ectoparasites in livestock management, being used in the form of an ear-tag, neck strap, neck strap tag, tail strap, limb strap or halter.
    Type: Grant
    Filed: August 31, 1984
    Date of Patent: December 23, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wilhelm Stendel, Herbert Voege
  • Patent number: 4611003
    Abstract: Compounds of the formula ##STR1## in which R.sup.1 is hydrogen, halogen or alkyl,R.sup.2 is halogen, alkyl or alkylthio,X is oxygen or sulphur, andY is hydrogen, halogen, alkyl or halogenoalkyl,which possess pesticidal activity.
    Type: Grant
    Filed: June 13, 1983
    Date of Patent: September 9, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Albrecht Marhold, Wilhelm Sirrenberg, Erich Klauke, Ingeborg Hammann, Benedikt Becker, Ingomar Krehan, Wilhelm Stendel
  • Patent number: 4611009
    Abstract: 3-Phenoxybenzyl 2,2-dimethyl-3-vinyl-cyclopropane carboxylates of the formula ##STR1## in which R, R.sup.1 and R.sup.2 each independently is hydrogen or halogen,R.sup.3 is phenyl, phenylthio, or phenyl or phenylthio carrying at least one alkyl group or halogen atom,Y is hydrogen or cyano,n is 1, 2, 3, 4 or 5, andm is 1, 2, 3 or 4,which possess arthropodicidal properties.
    Type: Grant
    Filed: June 24, 1982
    Date of Patent: September 9, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rainer Fuchs, Ingeborg Hammann, Wilhelm Stendel
  • Patent number: 4582856
    Abstract: Pesticidally active 2,2-dimethyl-3-(2-halogeno-vinyl)-cyclopropanecarboxylic acid esters of the formula ##STR1## in which R.sup.1 and R.sup.2 are identical or different and represent alkyl or halogenoalkyl,R.sup.3 represents alkyl or the grouping --(CH.sub.2)--.sub.n R.sup.4,in whichn represent 0 or 1 andR.sup.4 represents halogenoalkyl, optionally substituted aryl or the grouping --XR.sup.5,in whichX represents oxygen or sulphur andR.sup.5 represents alkyl, halogenoalkyl, optionally substituted aryl or optionally substituted aralkyl,Hal represents fluorine, chlorine or bromine andR represents an alcohol radical which can be used in the case of pyrethroids.Intermediates carrying an acid, acid chloride or alkyl ester group in place of --COOR are also new.
    Type: Grant
    Filed: March 20, 1984
    Date of Patent: April 15, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Reinhard Lantzsch, Benedikt Becker, Bernhard Homeyer, Wilhelm Stendel
  • Patent number: 4575501
    Abstract: 2-Arylhydrazino-2-thiazolines, acyl derivatives of these compounds and 2-arylazo-2-thiazolines, of the general formula ##STR1## and salts thereof, are new, are prepared as described and find use for combating ectoparasites and endoparasites, such as cattle and sheep ticks, and gastric and intestinal nematodes in ruminants and carnivors.
    Type: Grant
    Filed: August 6, 1982
    Date of Patent: March 11, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Otto Behner, Wilhelm Stendel, Peter Andrews
  • Patent number: 4568541
    Abstract: The invention relates to insecticidal formulations which have a pronounced residual action and contain (a) 0.1 to 20% by weight of an insecticidally active compound or compounds, (b) 1 to 40% by weight of a water-soluble gel-forming or lacquer-forming polymer, (c) 40 to 98% by weight of organic, water-miscible solvent, and (d) 0.1 to 10% by weight of one or more further additives.
    Type: Grant
    Filed: January 13, 1983
    Date of Patent: February 4, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hubert Dorn, Wilhelm Stendel, Herbert Voege
  • Patent number: 4567168
    Abstract: A cyanohydrin phosphate of the formula ##STR1## wherein R represents a hydrogen atom or an optionally substituted radical selected from alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, aralkyl, aralkenyl and aryl, or an optionally substituted heterocyclic radical,R.sup.1 and R.sup.2 are identical or different and individually represent optionally substituted radicals selected from alkyl, alkenyl, alkynyl, aryl, aralkyl, alkoxy, aryloxy, aralkoxy, alkylthio, alkenylthio, alkinylthio, arylthio, aralkylthio, alkylamino (monoalkylamino or dialkylamino), arylamino and aralkylamino, or together represent alkanediyl, alkanedioxy, aminoalkyloxy or alkanediamino, andX represents oxygen or sulphur,are obtained by the reaction of a phosphoric acid chloride of the general formula ##STR2## wherein X, R.sup.1 and R.sup.2 have the meaning given above, with an aldehyde of the general formulaR--CHO (III)wherein R has the meaning given above, in the presence of an approximately equimolar quantity of water-soluble cyanides.
    Type: Grant
    Filed: January 28, 1982
    Date of Patent: January 28, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernd-Wieland Kruger, Hans-Jochem Riebel, Ingeborg Hammann, Bernhard Homeyer, Wilhelm Stendel
  • Patent number: 4558139
    Abstract: Bafilomycins of the formula ##STR1## in which R.sup.1 is hydrogen or CH.sub.3, andR.sup.2 is hydrogen, or the group ##STR2## are produced by culturing certain streptomyces, e.g. Tu 1922, Tu 2437 and Tu 2599. Those wherein at least one of the OH groups is acylated are new. The compounds are pesticidally active.
    Type: Grant
    Filed: March 14, 1984
    Date of Patent: December 10, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Paul Hagenmaier, Gerhard Werner, Hannelore Drautz, Hartwig Holst, Hans Zahner, Wilhelm Brandes, Paul Reinecke, Gerhard Zoebelein, Wilhelm Stendel, Peter Andrews, Klaus Schaller
  • Patent number: 4552900
    Abstract: 3-(Pyrimidin-5-yl-oxy-phenyl)-1-benzoyl-(thio)-ureas of the formula ##STR1## in which R represents hydrogen, alkyl, cycloalkyl, halogenoalkyl or optionally substituted aryl,R.sup.1 represents hydrogen, nitro, halogen, alkyl or alkylthio,R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are indentical or different and represent hydrogen or halogen,R.sup.6 and R.sup.7 are identical or different and represent hydrogen, halogen or alkyl andX represents oxygen or sulphurwhich possess arthropodicidal activity. Novel intermediates are also shown.
    Type: Grant
    Filed: March 15, 1984
    Date of Patent: November 12, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wilhelm Sirrenberg, Fritz Maurer, Erich Klauke, Benedikt Becker, Wilhelm Stendel
  • Patent number: 4548931
    Abstract: O-(2,2,2-trihalogenoethyl) S-alkyl (di)thiophosphonates of the formula ##STR1## in which X is oxygen or sulphur,Y is halogen,R.sup.1 is alkyl or optionally substituted aryl, andR.sup.2 is alkyl.which exhibit insecticidal, acaricidal and nematocidal activity. Intermediates therefor of the formulas ##STR2## in which Z is one equivalent of an alkali metal or ammonium ion, andR.sup.3 is C.sub.1 -C.sub.4 -alkyl, are also new.
    Type: Grant
    Filed: October 4, 1983
    Date of Patent: October 22, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernd-Wieland Kruger, Bernhard Homeyer, Ingeborg Hammann, Wilhelm Stendel
  • Patent number: 4543247
    Abstract: The invention relates to ectoparasiticide-containing polyurethane collars for animals containing spreading agents and ectoparasiticides as well as methods for their manufacture.
    Type: Grant
    Filed: January 6, 1983
    Date of Patent: September 24, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Miklos von Bittera, Manfred Federmann, Ulrich von Gizycki, Dietmar Schapel, Wilhelm Stendel, Herbert Voege, Hubert Dorn
  • Patent number: 4536587
    Abstract: A compound of the formula ##STR1## in which R.sup.1 represents a hydrogen or halogen atom or an alkyl radical,R.sup.2 represents a hydrogen or halogen atom,X represents an oxygen or sulphur atom,Y represents a hydrogen or halogen atom or an alkyl or halogenoalkyl radical andA represents an alkylene radical which is substituted by fluorine and optionally additionally substituted by chlorine,which possesses insecticidal activity.
    Type: Grant
    Filed: May 12, 1983
    Date of Patent: August 20, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wilhelm Sirrenberg, Albrecht Marhold, Ingeborg Hammann, Ingomar Krehan, Wilhelm Stendel
  • Patent number: 4529557
    Abstract: Substituted phenyl-cyclopropanecarboxylic acid esters of the formula ##STR1## in which R.sup.1 represents an alkoxy or alkylthio radical which is monosubstituted or polysubstituted by identical or different halogen substituents,R.sup.2 represents a hydrogen or halogen atom, orR.sup.1 and R.sup.2 together represent an alkylenedioxy radical which is monosubstituted or polysubstituted by identical or different halogen substituents,R.sup.3 represents a hydrogen atom, a cyano group or an alkyl, alkenyl or alkinyl radicals which is optionally monosubstituted or polysubstituted by identical or different halogen substituents,Y represents a nitrogen atom or a methinyl radical, andR.sup.4 and R.sup.5 are identical or different and represent a hydrogen or halogen atom,which possess pesticidal properties, plus novel intermediates therefor.
    Type: Grant
    Filed: July 6, 1982
    Date of Patent: July 16, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rainer Fuchs, Erich Klauke, Ingeborg Hammann, Bernhard Homeyer, Wilhelm Stendel
  • Patent number: 4503057
    Abstract: Substituted N,N-dimethyl O-pyrimidin-4-yl carbamates of the formula ##STR1## in which R is alkyl,R.sup.1 is hydrogen or optionally substituted alkyl, alkoxy, alkylthio, alkylsulphinyl or alkylsulphonyl,R.sup.2 is hydrogen or optionally substituted alkyl, orR.sup.1 and R.sup.2 together form an optionally substituted alkylene,A is alkylene having more than 1 carbon atom, andn is 0, 1 or 2,which possess insecticidal activity.
    Type: Grant
    Filed: March 11, 1983
    Date of Patent: March 5, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Fritz Maurer, Ingeborg Hammann, Bernhard Homeyer, Wilhelm Stendel
  • Patent number: 4491585
    Abstract: New phenoxypyridylmethyl esters of the general formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 have the meaning given in the description andR represents the radical ##STR2## wherein R.sup.4 and R.sup.5 have the meaning given in the description, and represents the radical ##STR3## wherein R.sup.6 and R.sup.7 have the meaning given in the description, are obtained by a process in which carboxylic acids of the general formulaR--COOH (II)wherein R has the meaning given previously, or reactive derivatives of these acids, are reacted with phenoxypyridyl alcohols of the general formula ##STR4## wherein R.sup.1, R.sup.2 and R.sup.3 have the meaning given above, or with reactive derivatives of these alcohols, if appropriate in the presence of acid acceptors, if appropriate in the presence of catalysts and if appropriate in the presence of diluents. The new phenoxypyridylmethyl esters of the formula (I) are distinguished by a high pesticidal, particularly insecticidal and acardicidal activity.
    Type: Grant
    Filed: March 5, 1982
    Date of Patent: January 1, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rainer Fuchs, Ingeborg Hammann, Bernhard Homeyer, Wilhelm Stendel
  • Patent number: 4485252
    Abstract: 2-Phenyl-alk-1-enyl-cyclopropane-carboxylic acid esters of the formula ##STR1## in which R each independently is hydrogen, halogen, cyano, nitro and, in each case optionally halogen-substituted, alkyl, alkoxy, alkylenedioxy or alkylthio,R.sup.1 is optionally halogen-substituted alkyk, andR.sup.2 is a radical customary in the alcohol part of pyrethroidswhich exhibit insecticidal and acaricidal activity. They are made from the corresponding alkyl esters which are new and made by novel processes.
    Type: Grant
    Filed: May 5, 1982
    Date of Patent: November 27, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rainer Fuchs, Ingeborg Hammann, Bernhard Homeyer, Wilhelm Stendel