Patents by Inventor Theodor ZWEIFEL

Theodor ZWEIFEL 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).

  • PROCESS FOR THE PREPARATION OF BIS-RESORCINYL-TRIAZINES
    Publication number: 20240270702
    Abstract: The invention relates to an improved process for the manufacture of bis-resorcinyl triazines of formula (I), wherein R1 is hydrogen, C1-C18alkyl or C2-C18alkenyl and R2 is C1-C18alkyl or C2-C18alkenyl.
    Type: Application
    Filed: May 20, 2022
    Publication date: August 15, 2024
    Inventors: Richard HESSE, Marco MEEUWSE, Dominique MITSCHI, Theodor ZWEIFEL
  • Synthesis of copanlisib and its dihydrochloride salt
    Patent number: 10494372
    Abstract: The present invention relates to a novel method of preparing copanlisib, copanlisib dihydrochloride, or hydrates of copanlisib dihydrochloride, to novel intermediate compounds, and to the use of said novel intermediate compounds for the preparation of said copanlisib, copanlisib dihydrochloride, or hydrates of copanlisib dihydrochloride. The present invention also relates to copanlisib dihydrochloride hydrates as compounds.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: December 3, 2019
    Assignee: Bayer Pharma Aktiengesellschaft
    Inventors: Jan-Georg Peters, Philipp Rubenbauer, Daniel Götz, Danja Großbach, Franz-Josef Mais, Heiko Schirmer, Juergen Stiehl, Kai Lovis, Andreas Lender, Martin Seyfried, Theodor Zweifel, Maurus Marty, Günter Weingärtner
  • SYNTHESIS OF COPANLISIB AND ITS DIHYDROCHLORIDE SALT
    Publication number: 20180282337
    Abstract: The present invention relates to a novel method of preparing copanlisib, copanlisib dihydrochloride, or hydrates of copanlisib dihydrochloride, to novel intermediate compounds, and to the use of said novel intermediate compounds for the preparation of said copanlisib, copanlisib dihydrochloride, or hydrates of copanlisib dihydrochloride. The present invention also relates to copanlisib dihydrochloride hydrates as compounds.
    Type: Application
    Filed: November 5, 2015
    Publication date: October 4, 2018
    Applicants: Bayer Pharma Aktiengesellschaft, Bayer Pharma Aktiengesellschaft
    Inventors: Jan-Georg PETERS, Philipp RUBENBAUER, Daniel GÖTZ, Danja GROßBACH, Franz-Josef MAIS, Heiko SCHIRMER, Juergen STIEHL, Kai LOVIS, Andreas LENDER, Martin SEYFRIED, Theodor ZWEIFEL, Maurus MARTY, Günter WEINGÄRTNER