Patents by Inventor Dieter Hubl

Dieter Hubl 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).

  • Process for the alkylation of estrone derivatives
    Patent number: 5621124
    Abstract: The invention relates to a process for the alkylation of estrone derivatives, which is characterized in that a suspension of the estrone derivatives in dimethylformamide is produced and carbonic acid diester and guanidine and/or alkyl guanidines are dissolved in it and in the largely oxygen-free mixture, the reaction is performed at 100.degree.-200.degree. C. under the reaction pressure being established.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: April 15, 1997
    Assignee: Schering Aktiengesellschaft
    Inventors: Carsten Seilz, Dieter Hubl
  • Benzoisothiazoles, their preparation and their use as pesticides
    Patent number: 5162351
    Abstract: There are described new benzoisothiazoles of general formula I ##STR1## wherein X and R have meanings given in the description, a process for their preparation and their use as pesticides, especially against nematodes.
    Type: Grant
    Filed: November 3, 1989
    Date of Patent: November 10, 1992
    Assignee: Schering Aktiengesellschaft
    Inventors: Dieter Hubl, Ernst Pieroh
  • 5-substituted 3-arylisoxazole derivatives, their preparation and their use as pesticides
    Patent number: 5064847
    Abstract: There are described new 5-substituted 3-arylisoxazole derivatives of general formula I ##STR1## in which in which R.sub.1 and R.sub.2 have the meanings given in the description, processes for their preparation and their use as pesticides, especially against nematodes.
    Type: Grant
    Filed: May 1, 1990
    Date of Patent: November 12, 1991
    Assignee: Schering Aktiengesellschaft
    Inventors: Dieter Hubl, Ernst Pieroh
  • 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
  • 2-imino-1,3-dithietanes, their use as pesticides
    Patent number: 4897415
    Abstract: There are described new 2-imino-1,3-dithietanes of general formula I ##STR1## in which R is the group ##STR2## in which A is CFHal, C(CH.sub.3)C.sub.1-4 -alkyl, C(CH.sub.3)CHal.sub.3, C(CH.sub.3)CF.sub.2 Cl, C(CH.sub.3)CFCl.sub.2, C.sub.2 H.sub.4, C.sub.2 H.sub.3 Hal, C.sub.2 H.sub.2 Hal.sub.2, C.sub.2 HHal.sub.3, C.sub.2 F.sub.2 Cl.sub.2, C.sub.2 F.sub.4 or C.sub.2 F.sub.3 Cl, in which Hal is F or Cl,Y is nitrogen or CH,R.sup.1 is fluoro-C.sub.1-12 -alkyl, fluoro-C.sub.2-12 -alkenyl, fluoro-C.sub.2-12 -alkynyl, fluorocyclopropyl or fluorocyclopropylmethyl;X is oxygen or sulphur,2 is defined in the specification andn is 0, 1 or 2,as well as their acid addition salts, a process for their preparation and their use as pesticides. The new compounds are especially useful as nematicides.
    Type: Grant
    Filed: January 29, 1988
    Date of Patent: January 30, 1990
    Assignee: Schering Aktiengesellschaft
    Inventors: Dieter Hubl, Ernst-Albrecht Pieroh, Eberhard Richter, Reinhold Puttner