Patents by Inventor Ulrich Buhmann

Ulrich Buhmann 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).

  • Substituted phenyl acid esters, their preparation and their use as insecticides and acaricides
    Patent number: 5066675
    Abstract: There are described new phenylacetic acid derivatives of general formula I ##STR1## in which R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 have the meanings given in the description, processes for their preparation and insecticidal and acaricidal compositions containing these compounds.
    Type: Grant
    Filed: August 31, 1990
    Date of Patent: November 19, 1991
    Assignee: Schering Aktiengesellschaft
    Inventors: Ulrich Buhmann, Hartmut Joppien, Dietrich Baumert
  • Substituted hydrazones, process for the preparation and their use as pesticide
    Patent number: 4983755
    Abstract: A method of combatting plant nematodes which comprises applying to the soil or the plant, an effective amount of a compound of general formula I ##STR1## wherein Ar, X, R.sub.1, R.sub.2, R.sub.4 and R.sub.5 have the meanings given in the description, is described. Some of the compounds also form part of the invention.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: January 8, 1991
    Assignee: Schering Aktiengesellschaft
    Inventors: Ulrich Buhmann, Dieter Hubl, Ernst-Albrecht Pieroh
  • Insecticides pyrazolines, compositions and use
    Patent number: 4888340
    Abstract: Compounds of formula I ##STR1## in which X, Y and Z have various meanings, are described, as well as processes for their preparation and their use as insecticides and acaricides.
    Type: Grant
    Filed: September 20, 1988
    Date of Patent: December 19, 1989
    Assignee: Schering Aktiengesellschaft
    Inventors: Harribert Neh, Ulrich Buhmann, Peter Wegner, Hartmut Joppien, David Giles, Graham P. Rowson
  • Insecticidal 3-substituted 4-fluorophenyl-1-(fluoroalkoxyphenylcarbamoyl)-pyrazolines
    Patent number: 4837220
    Abstract: Pyrazolines of general formula I ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and are hydrogen or fluorine, are described, as well as processes for their preparation and their use as insecticides and acaricides.
    Type: Grant
    Filed: November 10, 1987
    Date of Patent: June 6, 1989
    Assignee: Schering Akt.
    Inventors: Harribert Neh, Ulrich Buhmann, Hartmut Joppien, David Giles
  • Anilinopyrimidine fungicides
    Patent number: 4783459
    Abstract: There are described new pyrimidine derivatives of the general formula I ##STR1## in which n is 0, 1 or 2;R.sub.1 is(a) the group --CXR.sub.5, where X is oxygen or sulphur and R.sub.5 is hydrogen, a nitrogen or sulphur containing heterocyclic group, which can contain other hetero atoms, optionally substituted alkenyl, acyl, alkoxycarbonyl, alkyl substituted by aryloxy, or optionally substituted mono- or dialkylamino; or R.sub.5 is the group --NHR.sub.6, where R.sub.6 is substituted amino, substituted carbamoyl, optionally substituted alkylsulphonyl, acyl or arylsulphonyl, and when n is 0 or when X is sulphur, R.sub.5 can also be alkyl, haloalkyl, aryl, aralkyl, alkoxycarbonylalkyl or arylamino;(b) cyano or the group --CXYR.sub.7, where X and Y are the same or different and are oxygen, sulphur or optionally substituted imino and R.sub.
    Type: Grant
    Filed: April 23, 1987
    Date of Patent: November 8, 1988
    Assignee: Schering Agrochemicals Ltd.
    Inventors: Ulrich Buhmann, Jurgen Westermann, Dietrich Baumert, Ernst Pieroh, Geoffrey R. Cliff, Ian C. Richards
  • Thiazolylidene-oxo-propionitrile salts and insecticidal compositions containing these salts
    Patent number: 4320125
    Abstract: Thiazolylidene-oxo-propionitrile salt of the formula ##STR1## in which R.sub.1, R.sub.2 and R.sub.3 have the meaning defined in the specification and B.sup.1 is an ammonium group or an alkali cation. The compounds are valuable as insecticides of a superior activity against specific groups of insects.
    Type: Grant
    Filed: May 13, 1980
    Date of Patent: March 16, 1982
    Assignee: Schering Aktiengesellschaft
    Inventors: Reinhold Puttner, Ulrich Buhmann, Hartmut Joppien
  • Thiazolylidene-oxo-propionitriles, insecticidal composition containing these compounds
    Patent number: 4297361
    Abstract: A thiazolylidene-oxo-propionitriles of the formula ##STR1## in which R.sub.1, R.sub.2 and R.sub.3 have the meaning defined in the specification. The compounds are valuable as insecticides of a superior activity against specific groups of insects.
    Type: Grant
    Filed: May 19, 1980
    Date of Patent: October 27, 1981
    Assignee: Schering Aktiengesellschaft
    Inventors: Reinhold Puttner, Ulrich Buhmann, Harmut Joppien