Patents Assigned to Arzneimittelwerk Dresden
  • Patent number: 6613794
    Abstract: The invention relates to new hydroxyindoles of the Formula, their use as inhibitors of phosphodiesterase 4 and processes for their preparation.
    Type: Grant
    Filed: January 20, 2003
    Date of Patent: September 2, 2003
    Assignee: Arzneimittelwerk Dresden GmbH
    Inventors: Norbert Höfgen, Ute Egerland, Hildegard Poppe, Degenhard Marx, Stefan Szelényi, Thomas Kronbach, Emmanuel Polymeropoulos, Sabine Heer
  • Patent number: 6602890
    Abstract: The invention relates to new hydroxyindoles of the Formula, their use as inhibitors of phosphodiesterase 4 and processes for their preparation.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: August 5, 2003
    Assignee: Arzneimittelwerk Dresden GmbH
    Inventors: Norbert Höfgen, Ute Egerland, Hildegard Poppe, Degenhard Marx, Stefan Szelényi, Thomas Kronbach, Emmanuel Polymeropoulos, Sabine Heer
  • Patent number: 6545158
    Abstract: The invention relates to new hydroxyindoles of the Formula, their use as inhibitors of phosphodiesterase 4 and processes for their preparation.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: April 8, 2003
    Assignee: Arzneimittelwerk Dresden GmbH
    Inventors: Norbert Höfgen, Ute Egerland, Hildegard Poppe, Degenhard Marx, Stefan Szelényi, Thomas Kronbach, Emmanuel Polymeropoulos, Sabine Heer
  • Patent number: 6545025
    Abstract: The invention relates to nets hydroxyindoles of the Formula, their use as inhibitors of phosphodiesterase 4 and processes for their preparation.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: April 8, 2003
    Assignee: Arzneimittelwerk Dresden GmbH
    Inventors: Norbert Höfgen, Ute Egerland, Hildegard Poppe, Degenhard Marx, Stefan Szelényi, Thomas Kronbach, Emmanuel Polymeropoulos, Sabine Heer
  • Patent number: 6500821
    Abstract: The invention relates to 1,5-dihydropyrrol-2-ones of Formula 1 which contain an aryl radical in the 1-position and a secondary amine radical in the 4-position, to a process for making and for a process to treat various forms of epilepsies and of states of anxiety and tension.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: December 31, 2002
    Assignee: Arzneimittelwerk Dresden GmbH
    Inventors: Thomas Arnold, Klaus Unverferth, Hans-Joachim Lankau, Angelika Rostock, Christine Tober, Chris Rundfeldt, Reni Bartsch
  • Patent number: 6472165
    Abstract: A selective modulatory retigabine binding potassium channel receptor site containing subunits KCNQ2 and KCNQ3, and a method for directly selectively modulating that receptor site by administering retigabine to a cell preparation of the potassium channel.
    Type: Grant
    Filed: August 3, 1999
    Date of Patent: October 29, 2002
    Assignee: Arzneimittelwerk Dresden GmbH
    Inventors: Chris Rundfeldt, Rainer Netzer
  • Patent number: 6465465
    Abstract: The invention relates to the use of pyrido[3,2-e]-pyrazinones of formula 1 as inhibitors of phosphodiesterase 5 for the treatment of erectile dysfunction (impotence).
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: October 15, 2002
    Assignee: Arzneimittelwerk Dresden GmbH
    Inventors: Degenhard Marx, Norbert Höfgen, Ute Egerland, Stefan Szelényi, Thomas Kronbach
  • Patent number: 6306306
    Abstract: The present invention relates to a novel chromatographic process which is suitable for the purification of cyclosporin-containing crude extracts on industrial scale. In this process, the conventional preparative chromatographic separation methods are completely or at least partially replaced by the simulated moving bed method (SMB). The cyclosporin A obtained corresponds both to the quality requirements of USP XXIII and of EUROPEAN PHARMACOPOEIA, 2nd Edition 1995.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: October 23, 2001
    Assignee: Arzneimittelwerk Dresden
    Inventors: Ulrich Voigt, Joachim Kinkel, Roland Hempel, Roger-Marc Nicoud
  • Patent number: 6251923
    Abstract: The invention relates to new hydroxyindoles of the Formula, their use as inhibitors of phosphodiesterase 4 and processes for their preparation.
    Type: Grant
    Filed: April 28, 1999
    Date of Patent: June 26, 2001
    Assignee: Arzneimittelwerk Dresden GmbH
    Inventors: Norbert Höfgen, Ute Egerland, Hildegard Poppe, Degenhard Marx, Stefan Szelényi, Thomas Kronbach, Emmanuel Polymeropoulos, Sabine Heer
  • Patent number: 6242002
    Abstract: The invention relates to an effervescent, rapidly disintegrating oral dosage form of (a) an alkali-sensitive active ingredient, (b) an effervescent base comprising at least one of (i) at least one alkaline earth metal carbonate, (ii) an organic edible acid, and (iii) an alkali metal salt of citric acid, and optionally (c) a pharmaceutically acceptable auxiliary ingredient, and to a process for preparing the dosage form.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: June 5, 2001
    Assignee: Arzneimittelwerk Dresden GmbH
    Inventors: Wolfram Tritthart, Mario André Piskernig, Gottfried Kölbl
  • Patent number: 6180637
    Abstract: The invention relates to 1,2,5-trisubstituted 1,2-dihydroindazol-3-ones of formula (I) wherein X is —SO2—, —SO—, —(CH2)p—, —(CH2)p—O—, —(CH2)p—(C═O)—, —(CH2)p—(C═O)—NH—, —(CH2)p—CHOH—, —CHOH—(CH2)p—, —(CH2)p—CH═CH—, —CH═CH—(CH2)p—, Y is —(C═O)—, —(C═O)—NH—, —(C═O)—NH—(CH2)p—, —C═O)—(CH2)p—, —(CH2)p—, —(CH2)p—O—, —(CH2)p—(C═O)—, —(CH2)p—(C═O)—NH—, —(CH2)p—(C═O)—NH—(CH2)p—, —(CH2)p—CHOH—, —CHOH—(CH2)p—, —(CH2)p—CH═CH—, —CH═CH—(CH2)p—, Z is —O—, —O—(CH2)p—, —NH—, —NH—(
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: January 30, 2001
    Assignee: Arzneimittelwerk Dresden GmbH
    Inventors: Rudolf Schindler, Norbert Höfgen, Hildegard Poppe, Kay Brune
  • Patent number: 6166023
    Abstract: The invention relates to 1,5- and 3-O-substituted 1H-indazoles of formula (I) ##STR1##
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: December 26, 2000
    Assignee: Arzneimittelwerk Dresden GmbH
    Inventors: Rudolf Schindler, Norbert Hofgen, Hildegard Poppe, Kay Brune
  • Patent number: 6143795
    Abstract: An aqueous solution of from about 1 mg/ml to about 5 mg/ml mitoxantrone.HCl, from about 0.01% wt. to about 0.15% wt. based on the solution of sodium edetate, sodium chloride, sodium acetate, and acetic acid, and a process for preparing the same.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: November 7, 2000
    Assignee: Arzneimittelwerk Dresden GmbH
    Inventors: Katrin Moschner, Mario Weingart, Michael Pieroth, Wolfgang Morick, Elisabeth Wolf-Heuss
  • Patent number: 6103264
    Abstract: A process for preparing a controlled release composition with a controlled release matrix and containing a pharmaceutically active ingredient, which comprises granulating the active ingredient with a molten matrix material or with a matrix material while it is being melted and with optional additional inactive materials at a first elevated temperature, then cooling and screening the granulate, forming a fluidized bed of the resulting material at a second elevated temperature, and recovering the resulting product; and the product formed by the process.
    Type: Grant
    Filed: July 7, 1998
    Date of Patent: August 15, 2000
    Assignee: Arzneimittelwerk Dresden GmbH
    Inventors: Torsten Hoffmann, Klaus Liebold, Joachim Wolf, Heiko Schumacher
  • Patent number: 6071911
    Abstract: Antiepileptic compounds of the formula ##STR1## wherein X is hydrogen, a C.sub.1-4 alkyl, C.sub.1-4 alkoxy, trifluoromethyl, trifluoromethoxy or halogen residue, A is an amino, C.sub.1-4 alkylamino, C.sub.1-4 dialkylamino, morpholino, piperidino or pyrrolidino residue, and n is a cardinal number from 0 to 5, and process for preparing the foregoing compounds and for their use as anticonvulsives.
    Type: Grant
    Filed: August 6, 1999
    Date of Patent: June 6, 2000
    Assignee: Arzneimittelwerk Dresden GmbH
    Inventors: Hans-Joachim Lankau, Klaus Unverferth, Thomas Arnold, Reni Bartsch, Abgelika Rostock, Vladimir Granik, Sofia Grizik
  • Patent number: 6054460
    Abstract: The invention relates to pyrazolo[3,4d]pyrimidin-4(5H)-ones and pyrazolo[3,4-d]pyrimidine-4(5H)-thiones and their tautomers and pharmaceutically acceptable salts, which contain a benzyl radical in the 2-position, processes for their preparation and their use as medicaments, in particular for the treatment of epilepsies of various forms and of allergic/asthmatic diseases.
    Type: Grant
    Filed: June 15, 1999
    Date of Patent: April 25, 2000
    Assignee: Arzneimittelwerk Dresden GmbH
    Inventors: Thomas Arnold, Hans-Joachim Lankau, Manfred Menzer, Angelika Rostock, Christine Tober, Klaus Unverferth
  • Patent number: 5994347
    Abstract: A process for the treatment of anxiety and tension, which comprises administering to a patient in need therefor an anxiolytically effective amount of a compound of the formula ##STR1## wherein X is hydrogen, a C.sub.1-4 alkyl, C.sub.1-4 alkoxy, trifluoromethyl residue, or halogen; R.sup.1 and R.sup.2 are independently of each other a C.sub.1-4 alkyl, cycloalkyl, C.sub.2-4 hydroxyalkyl, or heteroalkyl residue, or R.sup.1 and R.sup.2 together form a C.sub.2-6 alkylene residue in which one --CH.sub.2 -- group can be replaced by oxygen, nitrogen or sulfur; n is 0 or 1, and m is 0 or a cardinal number from 1-5, or a pharmaceutically acceptable salt of the compound.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: November 30, 1999
    Assignee: Arzneimittelwerk Dresden GmbH
    Inventors: Angelika Rostock, Rita Dost, Christine Tober, Reni Bartsch, Klaus Unverferth, Chris Rundfeldt
  • Patent number: 5977391
    Abstract: The invention relates to (+) and (-)-8-halogen-6-hydroxy-octanoic acid enantiomers wherein the halogen is Cl, Br, or I, and their respective preparatory processes.
    Type: Grant
    Filed: November 4, 1998
    Date of Patent: November 2, 1999
    Assignee: Arzneimittelwerk Dresden GmbH
    Inventors: Rainer Gewald, Gunter Laban, Thomas Beisswenger
  • Patent number: 5952388
    Abstract: The invention relates to the use of selegiline (=L-N-(1-phenylisopropyl)-N-methyl-N-propynylamine) or pharmaceutically utilizable salts thereof in pharmaceuticals with an antiepileptic effect.
    Type: Grant
    Filed: February 11, 1997
    Date of Patent: September 14, 1999
    Assignee: Arzneimittelwerk Dresden GmbH
    Inventor: Wolfgang Loscher
  • Patent number: 5888545
    Abstract: An oral administration carbamazepine medicament with a retarded active substance release is disclosed. An aqueous plasticised polymer dispersion is applied on carbamazepine crystals without causing formation of carbamazepine dihydrate. The carbamazepine crystals with their aqueous coating may be mixed with appropriate auxiliarly substances, shaped into divisible tablets or filled into capsules.
    Type: Grant
    Filed: April 24, 1997
    Date of Patent: March 30, 1999
    Assignee: Arzneimittelwerk Dresden GmbH
    Inventors: Karl-Friedrich Landgraf, Sabine Reiss, Eberhard Schubert