Patents by Inventor Johannes Hubertus Wieringa

Johannes Hubertus Wieringa 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).

  • Patent number: 8058436
    Abstract: The invention provides a method for the preparation of enantiomerically pure mirtazapine, said method comprising a step of ring closure of a compound of formula (II) wherein X is a leaving group, said step comprising treatment with an acid, whereby mirlazapine with enantiomeric excess is formed by the ring closure of the compound of formula (II) with enantiomeric excess by treatment with a suitable acid in the absence of a solvent or a suitable combination of an acid and an organic solvent.
    Type: Grant
    Filed: July 5, 2004
    Date of Patent: November 15, 2011
    Assignee: N.V. Organon
    Inventors: Johannes Hubertus Wieringa, Adrianus Antonius Martinus Van De Ven, Gerardus Johannes Kemperman
  • Patent number: 6403573
    Abstract: The invention relates to a compound having formula (I) wherein A is an optionally unsaturated 5- or 6-membered ring, which may comprise a heteroatom selected from N,O and S and which may be substituted with oxo or (1-6C) alkyl; R1, R2 and R3 are independently H, (1-6C) alkyl, (1-6C) alkoxy,(1-6C) alkoxy-(1-6C) alkyl, carbo(1-6C) alkoxy or halogen; X is O or S; and n is 1 or 2; or a pharmaceutically acceptable salt thereof, with the exception of 3-(naphth-1-yl-oxy)-pyrrolidin and 3-(5,6,7,8-tetrahydro-napth-1-yl-oxy)-pyrrolidin. The compounds of the invention have antidepressant activity and can be used in treating or preventing serotonin-related diseases.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: June 11, 2002
    Assignee: Akzo Nobel N.V.
    Inventors: Dirk Leysen, Johannes Hubertus Wieringa, Christophorus Louis Eduard Broekkamp
  • Publication number: 20020040016
    Abstract: The invention relates to a compound having formula (I) wherein A is an optionally unsaturated 5- or 6-membered ring, which may comprise a heteroatom selected from N, O and S and which may be substituted with oxo or (1-6C)alkyl; R1, R2 and R3 are independently H, (1-6C)alkyl, (1-6C)alkoxy, (1-6C)alkoxy-(1-6C)alkyl, carbo(1-6C)alkoxy or halogen; X is O or S; and n is 1 or 2; or a pharmaceutically acceptable salt thereof, with the exception of 3-(naphth-1-yl-oxy)-pyrrolidin and 3-(5,6,7,8-tetrahydro-napth-1-yl-oxy)-pyrrolidin. The compounds of the invention have antidepressant activity and can be used in treating or preventing serotonin-related diseases.
    Type: Application
    Filed: May 30, 2001
    Publication date: April 4, 2002
    Inventors: Dirk Leysen, Johannes Hubertus Wieringa, Christophorus Louis Eduard Broekkamp
  • Patent number: 6281243
    Abstract: The invention relates to a compound having formula (I) wherein A is an optionally unsaturated 5- or 6-membered ring, which may comprise a heteroatom selected from N, O and S and which may be substituted with oxo or (1-6C)alkyl; R1, R2 and R3 are independently H, (1-6C)alkyl, (1-6C)alkoxy, (1-6C)alkoxy(1-6C)-alkyl, carbo(1-6C)alkoxy or halogen; X is O or S; and n is 1 or 2; or a pharmaceutically acceptable salt thereof, with the exception of 3-(naphth-1-yl-oxy)-pyrolidin and 3-(5,6,7,8-tetmhydro-naphth-1-yl-oxy)-pyrolidin. The compounds of the invention have antidepressant activity and can be used in treating or preventing serotonin-related diseases.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: August 28, 2001
    Assignee: Akzo Nobel N.V.
    Inventors: Dirk Leysen, Johannes Hubertus Wieringa, Christophorus Louis Eduard Broekkamp
  • Patent number: 5763476
    Abstract: The invention relates to a sublingual or buccal pharmaceutical composition comprising trans-5-chloro-2-methyl-2,3,3a,12b-tetrahydro-1H-dibenz?2,3:6,7!oxepino-?4 ,5-c!pyrrole or a pharmaceutically acceptable salt thereof, and pharmaceutically acceptable auxiliaries suitable for use in sublingual or buccal compositions, and the use thereof for the manufacture of a sublingual or buccal pharmaceutical composition for the treatment of mental disorders, such as psychosis and schizophrenia.
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: June 9, 1998
    Assignee: Akzo Noble N.V.
    Inventors: Leonardus Petrus Carla Delbressine, Johannes Hubertus Wieringa