Patents by Inventor Helmut Kasper

Helmut Kasper 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: 4296116
    Abstract: A synergistic fungicidal composition comprising (1) at least one carboxidide of the formula ##STR1## in which Y represents a bifunctional group linking the two carbonyl groups with formation of an optionally substituted 5-membered heterocyclic ring with a total of 1 or 2 hetero-atoms (O and N),and (2) ##STR2##
    Type: Grant
    Filed: October 26, 1979
    Date of Patent: October 20, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Helmut Kaspers, Wilhelm Brandes
  • Patent number: 4151287
    Abstract: Compositions containing, and methods of combating fungi using, 1-diaryloxy-1-triazolyl-3,3-dimethyl-butan-2-ones and -butan-2-ols of the formula ##STR1## in which X and Y each independently is halogen, nitro, alkyl, alkoxy, halogenoalkylthio, amino, alkylamino, dialkylamino or N-alkyl-alkylsulfonylamino,Z is a direct bond, oxygen, sulfur, methylene, alkoxymethylene, sulfonyl or keto,A is --CO-- or --CH(OH)--,Az is 1,2,4-triazolyl-(1), 1,2,4-triazolyl-(4) or 1,2,3-triazolyl-(1), andA and b each independently is 0, 1, 2 or 3,Or salts thereof. Some of the compounds are new.
    Type: Grant
    Filed: March 21, 1977
    Date of Patent: April 24, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Kramer, Karl Heinz Buchel, Wilhelm Brandes, Helmut Kaspers
  • Patent number: 4101575
    Abstract: N-Aryl- or -heteroaryl-N'-(2,3-dihalogeno-alkanoyl)-ureas of the formula ##STR1## in which R and R' each independently is hydrogen or alkyl,R" is optionally substituted aryl or heteroaryl,R'" is hydrogen, optionally substituted alkyl, cycloalkyl or benzyl, or aryl, andHal is chlorine or bromineWhich possess fungicidal and bactericidal properties.
    Type: Grant
    Filed: March 18, 1976
    Date of Patent: July 18, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Edgar Enders, Helmut Kaspers, Wilhelm Brandes
  • Patent number: 4098894
    Abstract: Triphenyl-1,2,3-triazolyl-(1)-methanes of the formula ##STR1## in which X and Z each independently is hydrogen, alkyl, halogen, nitrile or thiocyano, andY is hydrogen, halogen, alkyl, halogenoalkyl or nitro,Which possess fungicidal and bactericidal properties.
    Type: Grant
    Filed: February 5, 1975
    Date of Patent: July 4, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl Heinz Buchel, Heinrich Gold, Paul-Ernst Frohberger, Helmut Kaspers
  • Patent number: 4073901
    Abstract: Metal complexes of N-trityl-azoles of the formula ##STR1## IN WHICH Me is a metal,X is halogen, nitro, cyano, hydroxyl, alkyl, alkoxy, alkylthio, alkoxycarbonyl, haloalkyl or alkylsulfonyl,Az is an imidazolyl radical or a 1,2,4-triazolyl radical,A is an anion of an inorganic acid,n is 0, 1, 2, 3 or 4,m is 1, 2, 3 or 4, andp is 1, 2, 3, 4, 5 or 6,Which possess fungicidal properties.
    Type: Grant
    Filed: January 14, 1976
    Date of Patent: February 14, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl H. Buchel, Paul-Ernst Frohberger, Helmut Kaspers
  • Patent number: 4005083
    Abstract: Metal complexes of azolyl ethers of the formula ##STR1## in which M is a metal,X is halogen, nitro, nitrile, optionally substituted alkyl, optionally substituted aryl, cycloalkyl, amino, carboxyl, alkoxycarbonyl, alkylcarbonyloxy, alkoxy, alkylthio, halogenoalkoxy, halogenoalkylthio, aryloxy, arylcarbonyloxy, benzoyl, halogenobenzoyl, alkylcarbonylamino, dialkylamino, alkylsulfonyl, alkylsulfonyloxy, arylsulfonyl or arylsulfonyloxy,Az is an imidazolyl radical, a 1,2,4-triazolyl-(1) radical or a 1,2,4-triazolyl-(4) radical,B is CO or CH(OH),R is alkyl or optionally substituted aryl,A is an anion of an inorganic acid,a is an integer from 0 to 5,n is 0 or 1,m is an integer from 1 to 4,p is an integer from 1 to 6, andk is an integer from 0 to 12, which possess fungicidal, bactericidal and plant growth-regulating properties.
    Type: Grant
    Filed: April 30, 1975
    Date of Patent: January 25, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl Heinz Buchel, Wolfgang Kramer, Helmut Kaspers, Hans Scheinpflug
  • Patent number: 3972892
    Abstract: 1-[1,2,4-TRIAZOLYL-(1)] -2-ARYLOXY-3-HYDROXYALKANES OF THE FORMULA ##EQU1## in which R.sup.1 is optionally substituted aryl,R.sup.2 is hydrogen, alkyl, alkenyl, cycloalkyl, optionally substituted aryl or optionally substituted aralkyl, andR.sup.3 is alkyl or cycloalkyl, or can be hydrogen if R.sup.2 does not denote hydrogen,Which possess fungicidal properties.
    Type: Grant
    Filed: September 27, 1974
    Date of Patent: August 3, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl Heinz Buchel, Wolfgang Kramer, Helmut Kaspers, Wilhelm Brandes
  • Patent number: 3972905
    Abstract: Quinonemonoxime-arylacylhydrazones of the formula ##EQU1## in which EACH X independently is halogen, nitro, C.sub.1 -C.sub.6 alkyl or C.sub.1 -C.sub.6 alkoxy,Ar is phenyl or naphthyl,Z is oxygen or sulfur,R is hydrogen, C.sub.1 -C.sub.6 alkyl, hydroxyl or C.sub.1 -C.sub.6 alkoxy,Each Y independently is C.sub.1 -C.sub.6 alkyl,n is 0, 1, 2, 3 or 4,m is 0 or 1, andq is 0, 1 or 2Which possess fungicidal properties.
    Type: Grant
    Filed: February 27, 1975
    Date of Patent: August 3, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Arno Widdig, Ewald Urbschat, deceased, Ferdinand Grewe, Helmut Kaspers
  • Patent number: 3971804
    Abstract: Bis-trifluoromethyl-imino-imidazolones of the formula ##SPC1##In whichEach R independently is hydrogen or methyl,R.sup.2 is a radical selected from the group consisting of bridged rings; fused rings; directly linearly linked rings; rings linked through oxygen, alkylene, oxyalkylene or alkylenoxyalkylene; and substitution products of any of the foregoing with halogen, alkyl or alkoxy with 1 to 4 carbon atoms; said radicals comprising at least two carbon rings, at least one of which is non-aromatic;R.sup.
    Type: Grant
    Filed: January 21, 1975
    Date of Patent: July 27, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Arno Widdig, Ingeborg Hammann, Helmut Kaspers
  • Patent number: 3952002
    Abstract: Triazolyl-O,N-acetals of the formula ##EQU1## in which R.sup.1 and R.sup.4 each independently is alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, aryl, or aralkyl,R.sup.2 and R.sup.3 each independently is hydrogen or one of the radicals mentioned under R.sup.1, andA is a 1,2,4-triazolyl-(1), 1,2,4-triazolyl-(4) or 1,2,3-triazolyl-(1)-radical,Which possess fungicidal and microbiostatic properties.
    Type: Grant
    Filed: April 30, 1974
    Date of Patent: April 20, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Kramer, Karl Heinz Buchel, Werner Meiser, Helmut Kaspers, Paul-Ernst Frohberger
  • Patent number: 3939189
    Abstract: N-(fluorodichloromethylthio0-N-(trifluoromethyl)-aminobenzhydroxamic acids and their salts of the formula 0v,2/9In whichR is halogen, nitro, alkyl or alkoxy with in either case up to 3 carbon atoms, or trifluoromethyl,n is 0, 1 or 2, andM is hydrogen or one equivalent of an alkali metal, alkaline earth metal or heavy metal,Which possess fungicidal and microbicidal properties.
    Type: Grant
    Filed: February 19, 1974
    Date of Patent: February 17, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Engelbert Kuhle, Erich Klauke, Helmut Kaspers, Scheinppflug
  • Patent number: 3935312
    Abstract: Fungicidal compositions, containing and methods of combating fungi using, imidazo[4,5-b]quinoxalines of the general formula ##SPC1##In whichR is lower alkyl or halo-lower alkyl,R.sup.1 is halogen, lower alkyl or halo-lower alkyl,n is 0, 1 or 2.
    Type: Grant
    Filed: September 21, 1973
    Date of Patent: January 27, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Winfried Lunkenheimer, Karl Heinz Buchel, Helmut Kaspers
  • Patent number: 3934022
    Abstract: Plant fungicidal compositions are produced which comprise an amount of a compound of the formula: ##EQU1## wherein R is alkyl of 1 to 3 carbon atoms, sufficient to be effective for killing, combatting or controlling plant fungi, in combination with a solid or liquid diluent or carrier. Methods for killing, combatting or controlling fungal diseases in plants comprise applying to the fungi or to the plant to be protected an effective or toxic amount of the above compound.
    Type: Grant
    Filed: September 2, 1970
    Date of Patent: January 20, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl Heinz Buchel, Erik Regel, Ferdinand Grewe, Hans Scheinpflug, Helmut Kaspers
  • Patent number: 3932406
    Abstract: 2-Trifluoromethylimino-1,3-dithiolo[4,5-b]-quinoxalines of the formula ##SPC1##In whichX is lower alkyl, lower alkoxy, trihalogeno-methyl, trihalogenomethoxy, halogen or nitro, andn is an integer from 0 to 4,Which possess insecticidal, acaricidal, fungicidal and nematocidal properties.
    Type: Grant
    Filed: April 23, 1974
    Date of Patent: January 13, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gerhard Buttner, Klaus Sasse, Ingeborg Hammann, Helmut Kaspers