Patents by Inventor Jurgen Stiehl

Jurgen Stiehl 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).

  • Synthesis of copanlisib and its dihydrochloride salt
    Patent number: 10035803
    Abstract: The present invention relates to a novel method of preparing copanlisib, and copanlisib dihydrochloride, to novel intermediate compounds, and to the use of said novel intermediate compounds for the preparation of said copanlisib.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: July 31, 2018
    Assignee: Bayer Pharma Aktiengesellschaft
    Inventors: Jan-Georg Peters, Jürgen Stiehl, Kai Lovis
  • SYNTHESIS OF COPANLISIB AND ITS DIHYDROCHLORIDE SALT
    Publication number: 20170327505
    Abstract: The present invention relates to a novel method of preparing copanlisib, and copanlisib dihydrochloride, to novel intermediate compounds, and to the use of said novel intermediate compounds for the preparation of said copanlisib.
    Type: Application
    Filed: November 5, 2015
    Publication date: November 16, 2017
    Applicant: Bayer Pharma Aktiengesellschaft
    Inventors: Jan-Georg PETERS, Jürgen STIEHL, Kai LOVIS
  • Process for the preparation of 4-{4-[({[4 chloro-3-(trifluoromethyl)phenyl]amino}carbonyl)amino]phenoxy}-N-methylpyridine-2-carboxamide
    Patent number: 8124782
    Abstract: The present invention relates to a process for preparing 4-{4-[({[4-chloro-3-(trifluoro-methyl)phenyl]amino}carbonyl)amino]phenoxy}-N-methylpyridine-2-carboxamide and its tosylate salt.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: February 28, 2012
    Assignee: Bayer Pharma Aktiengesellschaft
    Inventors: Michael Lögers, Reinhold Gehring, Oliver Kuhn, Mike Matthäus, Klaus Mohrs, Matthias Müller-Gliemann, Jürgen Stiehl, Mathias Berwe, Jana Lenz, Werner Heilmann
  • Process for the Preparation of 4-Carbonyl)Amino]Phenoxy}-N-Methylpyridine-2-Carboxamide
    Publication number: 20080262236
    Abstract: The present invention relates to a process for preparing 4-{4-[({[4-chloro-3-(trifluoro-methyl)phenyl]amino}carbonyl)amino]phenoxy}-N-methylpyridine-2-carboxamide and its tosylate salt.
    Type: Application
    Filed: September 20, 2005
    Publication date: October 23, 2008
    Applicant: Bayer HealthCare AG
    Inventors: Michael Logers, Reinhold Gehring, Oliver Kuhn, Mike Matthaus, Klaus Mohrs, Matthias Muller-Gliemann, Jurgen Stiehl, Mathias Berwe, Jana Lenz, Werner Heilmann