Patents by Inventor Dirk Kemmer

Dirk Kemmer 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).

  • Polymorphs
    Patent number: 11919903
    Abstract: The invention relates to polymorphous crystal modifications of a DPP-IV inhibitor, the preparation thereof and the use thereof for preparing a medicament.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: March 5, 2024
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Peter Sieger, Dirk Kemmer, Peter Kohlbauer, Thomas Nicola, Martin Renz
  • POLYMORPHS
    Publication number: 20210323964
    Abstract: The invention relates to polymorphous crystal modifications of a DPP-IV inhibitor, the preparation thereof and the use thereof for preparing a medicament.
    Type: Application
    Filed: June 30, 2021
    Publication date: October 21, 2021
    Inventors: Peter SIEGER, Dirk KEMMER, Peter KOHLBAUER, Thomas NICOLA, Martin RENZ
  • Polymorphs
    Patent number: 11084819
    Abstract: The invention relates to polymorphous crystal modifications of a DPP-IV inhibitor, the preparation thereof and the use thereof for preparing a medicament.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: August 10, 2021
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Peter Sieger, Dirk Kemmer, Peter Kohlbauer, Thomas Nicola, Martin Renz
  • POLYMORPHS
    Publication number: 20200055856
    Abstract: The invention relates to polymorphous crystal modifications of a DPP-IV inhibitor, the preparation thereof and the use thereof for preparing a medicament.
    Type: Application
    Filed: October 24, 2019
    Publication date: February 20, 2020
    Inventors: Peter SIEGER, Dirk KEMMER, Peter KOHLBAUER, Thomas NICOLA, Martin RENZ
  • POLYMORPHS
    Publication number: 20190233423
    Abstract: The invention relates to polymorphous crystal modifications of a DPP-IV inhibitor, the preparation thereof and the use thereof for preparing a medicament.
    Type: Application
    Filed: April 3, 2019
    Publication date: August 1, 2019
    Inventors: Peter SIEGER, Dirk KEMMER, Peter KOHLBAUER, Thomas NICOLA, Martin RENZ
  • Polymorphs
    Patent number: 10301313
    Abstract: The invention relates to polymorphous crystal modifications of a DPP-IV inhibitor, the preparation thereof and the use thereof for preparing a medicament.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: May 28, 2019
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Peter Sieger, Dirk Kemmer, Peter Kohlbauer, Thomas Nicola, Martin Renz
  • POLYMORPHS
    Publication number: 20180099969
    Abstract: The invention relates to polymorphous crystal modifications of a DPP-IV inhibitor, the preparation thereof and the use thereof for preparing a medicament.
    Type: Application
    Filed: October 5, 2017
    Publication date: April 12, 2018
    Inventors: Peter SIEGER, Dirk KEMMER, Peter KOHLBAUER, Thomas NICOLA, Martin RENZ
  • Polymorphs
    Patent number: 9815837
    Abstract: The invention relates to polymorphous crystal modifications of a DPP-IV inhibitor, the preparation thereof and the use thereof for preparing a medicament.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: November 14, 2017
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Peter Sieger, Dirk Kemmer, Peter Kohlbauer, Thomas Nicola, Martin Renz
  • POLYMORPHS
    Publication number: 20170022203
    Abstract: The invention relates to polymorphous crystal modifications of a DPP-IV inhibitor, the preparation thereof and the use thereof for preparing a medicament.
    Type: Application
    Filed: October 5, 2016
    Publication date: January 26, 2017
    Inventors: Peter SIEGER, Dirk KEMMER, Peter KOHLBAUER, Thomas NICOLA, Martin RENZ
  • Polymorphs
    Patent number: 9493462
    Abstract: The invention relates to polymorphous crystal modifications of a DPP-IV inhibitor, the preparation thereof and the use thereof for preparing a medicament.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: November 15, 2016
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Peter Sieger, Dirk Kemmer, Peter Kohlbauer, Thomas Nicola, Martin Renz
  • POLYMORPHS
    Publication number: 20160122352
    Abstract: The invention relates to polymorphous crystal modifications of a DPP-IV inhibitor, the preparation thereof and the use thereof for preparing a medicament.
    Type: Application
    Filed: January 13, 2016
    Publication date: May 5, 2016
    Inventors: Peter SIEGER, Dirk KEMMER, Peter KOHLBAUER, Thomas NICOLA, Martin RENZ
  • Polymorphs
    Patent number: 9266888
    Abstract: The invention relates to polymorphous crystal modifications of a DPP-IV inhibitor, the preparation thereof and the use thereof for preparing a medicament.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: February 23, 2016
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Peter Sieger, Dirk Kemmer, Peter Kohlbauer, Thomas Nicola, Martin Renz
  • POLYMORPHS
    Publication number: 20140357646
    Abstract: The invention relates to polymorphous crystal modifications of a DPP-IV inhibitor, the preparation thereof and the use thereof for preparing a medicament.
    Type: Application
    Filed: August 19, 2014
    Publication date: December 4, 2014
    Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBH
    Inventors: Peter SIEGER, Dirk KEMMER, Peter KOHLBAUER, Thomas NICOLA, Martin RENZ
  • POLYMORPHS
    Publication number: 20120296091
    Abstract: The invention relates to polymorphous crystal modifications of a DPP-IV inhibitor, the preparation thereof and the use thereof for preparing a medicament.
    Type: Application
    Filed: August 1, 2012
    Publication date: November 22, 2012
    Applicant: BOEHRINGER INGELHEIM PHARMA GMBH & CO. KG
    Inventors: Peter SIEGER, Dirk KEMMER, Peter KOHLBAUER, Thomas NICOLA, Martin RENZ
  • POLYMORPHS
    Publication number: 20070259900
    Abstract: The invention relates to polymorphous crystal modifications of a DPP-IV inhibitor, the preparation thereof and the use thereof for preparing a medicament.
    Type: Application
    Filed: May 4, 2007
    Publication date: November 8, 2007
    Inventors: Peter SIEGER, Dirk Kemmer, Peter Kohlbauer, Thomas Nicola, Martin Renz
  • Process for preparing macrocyclic compounds
    Patent number: 7148347
    Abstract: Disclosed is a process for preparing a macrocyclic compound of the formula (I): which is carried out using an intermediate of the formula (II): wherein W, R1 through R4, D, A and R12 are as defined herein. The compounds of formula (I) are potent active agents for the treatment of hepatitis C virus (HCV) infection.
    Type: Grant
    Filed: April 6, 2004
    Date of Patent: December 12, 2006
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Joerg Brandenburg, Kai Donsbach, Hans-Dieter Ecker, Rogelio Perez Frutos, Fabrice Gallou, Dieter Gutheil, Nizar Haddad, Robert Hagenkoetter, Dirk Kemmer, Jutta Kroeber, Thomas Nicola, Juergen Schnaubelt, Michael Schul, Robert Donald Simpson, Xudong Wei, Eric Winter, Yibo Xu, Nathan K. Yee
  • Process for preparing macrocyclic compounds
    Publication number: 20050049187
    Abstract: Disclosed is a process for preparing a macrocyclic compound of the formula (I): which is carried out using an intermediate of the formula (II): wherein W, R1 through R4, D, A and R12 are as defined herein. The compounds of formula (I) are potent active agents for the treatment of hepatitis C virus (HCV) infection.
    Type: Application
    Filed: April 6, 2004
    Publication date: March 3, 2005
    Applicant: Boehringer Ingelheim International GmbH
    Inventors: Joerg Brandenburg, Kai Donsbach, Hans-Dieter Ecker, Rogelio Frutos, Fabrice Gallou, Dieter Gutheil, Nizar Haddad, Robert Hagenkoetter, Dirk Kemmer, Jutta Kroeber, Thomas Nicola, Juergen Schnaubelt, Michael Schul, Robert Simpson, Xudong Wei, Eric Winter, Yibo Xu, Nathan Yee