Patents by Inventor Wilhelm Tschebull

Wilhelm Tschebull 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 preparation of an enantiomeric trisubstituted 3,4-dihydro-isoquinoline derivative
    Patent number: 8314238
    Abstract: The present invention relates to a process for the preparation of the compound of formula (7) which process comprises the hydrogenation of the compound of formula (4) using bis[chloro-1,5-cyclooctadiene-iridium], (S)-i-dicyclohexylphosphino-2-[(S)-?-(dimethylamino)-2-(dicyclohexylphosphino)benzyl]-ferrocene as a catalyst.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: November 20, 2012
    Assignee: Actelion Pharmaceuticals Ltd.
    Inventors: Erhard Bappert, Andreas Hendrikus Maria De Vries, Doris Domin, Matthias Helms, Christoph Imboden, Zarghun Nazir, Wolfgang Skranc, Felix Spindler, Michael Stanek, Wilhelm Tschebull, Gerardus Karel Maria Verzijl
  • Trisubstituted 3,4-dihydro-1H-isoquinolin compound, process for its preparation, and its use
    Patent number: 8247560
    Abstract: The present invention relates to the compound of formula 7*acetate (see below), a process for its preparation, and its use
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: August 21, 2012
    Assignee: Actelion Pharmaceuticals Ltd.
    Inventors: Maria Andreas Hendrikus De Vries, Doris Domin, Matthias Helms, Christoph Imboden, Ralph Koberstein, Zarghun Nazir, Wolfgang Skranc, Michael Stanek, Wilhelm Tschebull, Maria Gerardus Karel Verzijl, Jurgen Stichler
  • PROCESS FOR THE PREPARATION OF AN ENANTIOMERIC TRISUBSTITUTED 3,4-DIHYDRO-ISOQUINOLINE DERIVATIVE
    Publication number: 20100305325
    Abstract: The present invention relates to a process for the preparation of the compound of formula (7) which process comprises the hydrogenation of the compound of formula (4) using bis[chloro-1,5-cyclooctadiene-iridium], (S)-i-dicyclohexylphosphino-2-[(S)-?-(dimethylamino)-2-(dicyclohexylphosphino)benzyl]-ferrocene as a catalyst.
    Type: Application
    Filed: December 23, 2008
    Publication date: December 2, 2010
    Inventors: Erhard Bappert, Andreas Hendrikus Maria De Vries, Doris Domin, Matthias Helms, Christoph Imboden, Zarghun Nazir, Wolfgang Skranc, Felix Spindler, Michael Stanek, Wilhelm Tschebull, Gerardus Karel Maria Verzijl
  • TRISUBSTITUTED 3,4-DIHYDRO-1H-ISOQUINOLIN COMPOUND, PROCESS FOR ITS PREPARATION, AND ITS USE
    Publication number: 20100010226
    Abstract: The present invention relates to the compound of formula 7*acetate (see below), a process for its preparation, and its use
    Type: Application
    Filed: July 2, 2009
    Publication date: January 14, 2010
    Inventors: Maria Andreas Hendrikus De Vries, Doris Domin, Matthias Helms, Chistoph Imboden, Ralph Koberstein, Zarghun Nazir, Wolfgang Skranc, Michael Stanek, Wilhelm Tschebull, Maria Gerardus Karel Verzijl, Jürgen Stichler
  • Process for the manufacture of aluminum fluoride
    Patent number: 4238469
    Abstract: Aluminum fluoride with an AlF.sub.3 content of at least 96% by weight relative to the anhydrous product is produced by reacting aluminum hydroxide with aqueous fluosilicic acid, removing the precipitated silica, adding hydrofluoric acid in a quantity of 0.1-1% by weight of HF relative to the so produced AlF.sub.3 containing solution having an AlF.sub.3 content of 20 to 50 percent and atomizing same before the start of crystallization of the aluminum fluoride at temperatures of 110.degree.-350.degree. C. optionally using aluminum fluoride particles as heat transfer agents.
    Type: Grant
    Filed: April 3, 1979
    Date of Patent: December 9, 1980
    Assignee: Chemie Linz Aktiengesellschaft
    Inventors: Alfred Schmidt, Wilhelm Tschebull