Patents by Inventor Maria Niewöhner, legal representative

Maria Niewöhner, legal representative 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).

  • 2-phenyl substituted imidazotriazinones as phosphodiesterase inhibitors
    Patent number: 7704999
    Abstract: The 2-phenyl-substituted imidazotriazinones having short, unbranched alkyl radicals in the 9-position are prepared from the corresponding 2-phenyl-imidazotriazinones by chlorosulphonation and subsequent reaction with the amines. The compounds inhibit cGMP-metabolizing phosphodiesterases and are suitable for use as active compounds in pharmaceuticals, for the treatment of cardiovascular and cerebrovascular disorders and/or disorders of the urogenital system, in particular for the treatment of erectile dysfunction.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: April 27, 2010
    Assignee: Bayer Schering Pharma Aktiengesellschaft
    Inventors: Ulrich Niewöhner, Maria Niewöhner, legal representative, Mazen Es-Sayed, Helmut Haning, Thomas Schenke, Karl-Heinz Schlemmer, Jörg Keldenich, Erwin Bischoff, Elisabeth Perzborn, Klaus Dembowsky, Peter Serno, Marc Nowakowski
  • 2-phenyl substituted imidazotriazinones as phosphodiesterase inhibitors
    Patent number: 7696206
    Abstract: The application claims a compound of the formula or a salt, a hydrate, or a hydrate of a salt thereof. The compounds inhibit cGMP-metabolizing phosphodiesterases and are suitable for use as active compounds in pharmaceuticals, for the treatment of erectile dysfunction.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: April 13, 2010
    Assignee: Bayer Schering Pharma Aktiengesellschaft
    Inventors: Ulrich Niewöhner, Maria Niewöhner, legal representative, Mazen Es-Sayed, Helmut Haning, Thomas Schenke, Karl-Heinz Schlemmer, Jorg Keldenich, Erwin Bischoff, Elisabeth Perzborn, Klaus Dembowsky, Peter Serno, Marc Nowakowski
  • 2-phenyl substituted imidazotriazinones as phosphodiesterase inhibitors, for treatment of hypertension
    Patent number: 7314871
    Abstract: The application claims a method for treating hypertension by administering an effective amount of a compound of the formula (I) wherein the variable groups are as defined in the specification and claims. These 2-phenyl-substituted imidazotriazinones having short, unbranched alkyl radicals in the 9-position are prepared from the corresponding 2-phenyl-imidazotriazinones by chlorosulphonation and subsequent reaction with the amines. The compounds inhibit cGMP-metabolizing phosphodiesterases and are suitable for use as active compounds in pharmaceuticals, for the treatment of cardiovascular and cerebrovascular disorders and/or disorders of the urogenital system, in particular for the treatment of erectile dysfunction.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: January 1, 2008
    Assignee: Bayer Aktiengesellschaft
    Inventors: Maria Niewöhner, legal representative, Mazen Es-Sayed, Helmut Haning, Thomas Schenke, Karl-Heinz Schlemmer, Jörg Keldenich, Erwin Bischoff, Elisabeth Perzborn, Klaus Dembowsky, Peter Serno, Marc Nowakowski, Ulrich Niewöhner, deceased
  • Substituted imidazotriazines
    Patent number: 7202243
    Abstract: The invention relates to new substituted imidazotriazines, processes for their preparation and their use for the production of medicaments for the treatment and/or prophylaxis of cancer and neurodegenerative disorders, in particular of Parkinson's disease and of schizophrenia.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: April 10, 2007
    Assignee: Bayer HealthCare AG
    Inventors: Martin Hendrix, David Brückner, Arno Friedl, Irene Gerlach, Volker Hinz, Jörg Keldenich, Frank Mauler, Maria Niewöhner, legal representative, Dagmar Karthaus, Karl-Heinz Schlemmer, Adrian Tersteegen, Özkan Yalkinoglu, Ulrich Niewöhner, deceased
  • 2-Phenyl substituted imidazotriazinones as phosphodiesterase inhibitors
    Patent number: 7122540
    Abstract: The 2-phenyl-substituted imidazotriazinones having short, unbranched alkyl radicals in the 9-position are prepared from the corresponding 2-phenyl-imidazotriazinones by chlorosulphonation and subsequent reaction with the amines. The compounds inhibit cGMP-metabolizing phosphodiesterases and are suitable for use as active compounds in pharmaceuticals, for the treatment of cardiovascular and cerebrovascular disorders and/or disorders of the urogenital system, in particular for the treatment of erectile dysfunction.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: October 17, 2006
    Assignee: Bayer HealthCare AG
    Inventors: Maria Niewöhner, legal representative, Mazen Es-Sayed, Helmut Haning, Thomas Schenke, Karl-Heinz Schlemmer, Jörg Keldenich, Erwin Bischoff, Elisabeth Perzborn, Klaus Dembowsky, Peter Semo, Marc Nowakowski, Ulrich Niewöhner, deceased