Patents by Inventor Franz Schütz

Franz Schütz 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 the production of a particle-containing preparation of tetrahydro-3,5-dimethyl-1,3,5-thiadiazin-2-thione
    Patent number: 6693191
    Abstract: Described is a process for the preparation of a particulate tetrahydro-3,5-dimethyl-1,3,5-thiadiazine-2-thione product by combining a first aqueous solution comprising methylammonium N-methyldithiocarbamate with a second aqueous solution comprising formaldehyde, followed by separation and drying of the resulting solid, which comprises combining the first and the second aqueous solutions in such a way that the ratio between the concentrations of dithiocarbamate functions and of formaldehyde is essentially constant in the reaction mixture over time during the duration of the reaction.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: February 17, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinz Isak, Norbert Sendhoff, Franz Schütz, Jörg Therre, Michael Drögemüller, Dirk Franke, Manfred Munzinger, Alexander Weck, Kirsten Burkart
  • Method for the production of a particle-containing preparation of tetrahydro-3,5-dimethyl-1,3,5-thiadiazin-2-thione
    Publication number: 20030176692
    Abstract: Described is a process for the preparation of a particulate tetrahydro-3,5-dimethyl-1,3,5-thiadiazine-2-thione product by combining a first aqueous solution comprising methylammonium N-methyldithiocarbamate with a second aqueous solution comprising formaldehyde, followed by separation and drying of the resulting solid, which comprises combining the first and the second aqueous solutions in such a way that the ratio between the concentrations of dithiocarbamate functions and of formaldehyde is essentially constant in the reaction mixture over time during the duration of the reaction.
    Type: Application
    Filed: February 6, 2003
    Publication date: September 18, 2003
    Inventors: Heinz Isak, Norbert Sendhoff, Franz Schutz, Jorg Therre, Michael Drogemuller, Dirk Franke, Manfred Munzinger, Alexander Weck, Kirsten Burkart
  • 2-?(2-Alkoxy-6-trifluoromethylpyrimidin-4-yl)oxymethylene!phenylacetic acid derivatives, their preparation and intermediate therefor, and use thereof
    Patent number: 5935965
    Abstract: 2-?(2-Alkoxy-6-trifluoromethylpyrimidin-4-yl)oxymethylene!-phenylacetic acid derivatives of the formula I ##STR1## where the index and the substituents have the following meanings: U is CH or N;V is O or NH;R is alkyl;R.sup.1 is cyano, halogen, alkyl, haloalkyl, alkoxy, haloalkoxy or phenyl;n is 0 or an integer from 1 to 4,processes and intermediates for their preparation, and their use are described.
    Type: Grant
    Filed: May 6, 1997
    Date of Patent: August 10, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhard Kirstgen, Klaus Oberdorf, Franz Schutz, Hans Theobald, Volker Harries