Patents by Inventor Hans Schoemaker

Hans Schoemaker 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 producing chiral ?-hydroxycarboxylic acids by enzymatic hydrolysis of chiral cyanohydrins
    Patent number: 7514245
    Abstract: The invention relates to a method for producing chiral ?-hydroxycarboxylic crystalline acids consisting in transforming cyanhydrins (R) or (S) into ?-hydroxycarboxylic acids (R) or (S), respectively by enzymatic hydrolysis in the presence of Rhodococcus erythropolis NCIMB 11540.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: April 7, 2009
    Assignee: DSM Fine Chemicals Austria NFG GmbH & Co. KG
    Inventors: Herfried Griengl, Ingrid Osprian, Hans Schoemaker, Christoph Reisinger, Helmut Schwab
  • Method for producing chiral a-hydroxycarboxylic crystalline acids
    Publication number: 20080206827
    Abstract: The invention relates to a method for producing chiral ?-hydroxycarboxylic crystalline acids consisting in transforming cyanhydrins (R) or (S) into ?-hydroxycarboxylic acids (R) or (S), respectively by enzymatic hydrolysis in the presence of Rhodococcus erythropolis NCIMB 11540.
    Type: Application
    Filed: March 18, 2008
    Publication date: August 28, 2008
    Applicant: DSM Fine Chemicals Austria Nfg GmbH & Co. KG
    Inventors: Herfried Griengl, Ingrid Osprian, Hans Schoemaker, Christoph Reisinger, Helmut Schwab
  • Method for producing chiral ?-hydroxycarboxylic crystalline acids
    Patent number: 7390647
    Abstract: The invention relates to a method for producing chiral ?-hydroxycarboxylic crystalline acids consisting in transforming cyanhydrins (R) or (S) into ?-hydroxycarboxylic acids (R) or (S), respectively by enzymatic hydrolysis in the presence of Rhodococcus erythropolis NCIMB 11540.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: June 24, 2008
    Assignee: DSM Fine Chemicals Austria NFG GmbH & Co KG
    Inventors: Herfried Griengl, Ingrid Osprian, Hans Schoemaker, Christoph Reisinger, Helmut Schwab
  • Method for producing chiral alpha-hydroxycarboxylic acids by enzymatic hydrolysis of chiral cyanohydrins
    Publication number: 20060199256
    Abstract: The invention relates to a method for producing chiral ?-hydroxycarboxylic crystalline acids consisting in transforming cyanhydrins (R) or (S) into ?-hydroxycarboxylic acids (R) or (S), respectively by enzymatic hydrolysis in the presence of Rhodococcus erythropolis NCIMB 11540.
    Type: Application
    Filed: September 9, 2005
    Publication date: September 7, 2006
    Applicant: DSM Fine Chemicals Austria Nfg GmbH & Co KG
    Inventors: Herfried Griengl, Ingrid Osprian, Hans Schoemaker, Christoph Reisinger, Helmut Schwab
  • Method for Producing Chiral Alpha-Hydroxycarboxylic Crystalline Acids
    Publication number: 20060099696
    Abstract: The invention relates to a method for producing chiral ?-hydroxycarboxylic crystalline acids consisting in transforming cyanhydrins (R) or (S) into ?-hydroxycarboxylic acids (R) or (S), respectively by enzymatic hydrolysis in the presence of Rhodococcus erythropolis NCIMB 11540.
    Type: Application
    Filed: January 30, 2004
    Publication date: May 11, 2006
    Applicant: DSM Fine Chemicals Austria Nfg GmbH & Co KG
    Inventors: Herfried Griengl, Ingrid Osprian, Hans Schoemaker, Christoph Reisinger, Helmut Schwab
  • Methods of use and compositions of (S) (-)-amisulpride
    Patent number: 6187807
    Abstract: A composition of (S)(−)-amisulpride or a pharmaceutically acceptable salt thereof exhibit antipsychotic properties and are therefore useful in the treatment of certain mental disorders. The mental disorders include positive, negative, affective or cognitive symptoms of schizophrenia, dysthymia, autism, tardive dyskinesia induced by neuroleptics, Tourette disease, manic or depressive symptoms in patients with bipolar disorders, sudden attacks of delirium, migraine or drug addition. A composition of the D-(−)-tartrate of (S)-(−)-anisulpride is useful for the treatment of certain mental disorders.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: February 13, 2001
    Assignee: Sanofi-Synthelabo
    Inventors: Ghislaine Perrault, Hans Schoemaker, Joël Miget
  • Compositions of (S) (-)-amisulpride
    Patent number: 6169094
    Abstract: A composition is provided comprising an antipsychotic effective amount of (S)(−)-amisulpride, (S)-(−)-4-amino-N-[(1-ethylpyrrolidin-2-yl)methyl]-5-ethylsulfonyl)-2-methoxybenzamide. A preferred composition comprises the (D)-tartrate salt of (S)(−)-amisulpride. The (S)(−) enantiomer exhibits antipsychotic properties and administration of the specific enantiomer reduces adverse side effects by reducing toxicity.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: January 2, 2001
    Assignee: Sanofi-Synthelabo
    Inventors: Ghislaine Perrault, Hans Schoemaker, Jo{umlaut over (e)}l Miget