Patents by Inventor Marc Willuhn

Marc Willuhn 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).

  • N-methyl-homocysteines and their use as well as process for their production
    Patent number: 7659364
    Abstract: The synthesis of N-methyl-homocysteines and their use are described.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: February 9, 2010
    Assignee: CIS Bio International
    Inventors: Marc Willuhn, Johannes Platzek, Eckhard Ottow, Orlin Petrov, Claudia Borm, Dirk Hinz, Gregor Mann, John Lister-James, David M. Wilson
  • NOVEL CHIRAL HEPTYNE DERIVATIVES FOR THE PREPARATION OF EPOTHILONES AND PROCESSES FOR THEIR PREPARATION
    Publication number: 20080108838
    Abstract: The invention relates to a new synthetic process for the production of key intermediates useful in the synthesis of epothilones or epothilone derivatives, to certain compounds used to produce these key intermediates and to a process to produce said compounds.
    Type: Application
    Filed: December 12, 2007
    Publication date: May 8, 2008
    Inventors: Johannes Platzek, Orlin Petrov, Marc Willuhn, Klaus Graske, Werner Skuballa
  • Chiral heptyne derivatives for the preparation of epothilones and processes for their preparation
    Patent number: 7326798
    Abstract: The invention relates to a new synthetic process for the production of key intermediates useful in the synthesis of epothilones or epothilone derivatives, to certain compounds used to produce these key intermediates and to a process to produce said compounds.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: February 5, 2008
    Assignee: Schering AG
    Inventors: Johannes Platzek, Orlin Petrov, Marc Willuhn, Klaus Dieter Graske, Werner Skuballa
  • Novel chiral heptyne derivatives for the preparation of epothilones and processes for their preparation
    Publication number: 20060100442
    Abstract: The invention relates to a new synthetic process for the production of key intermediates useful in the synthesis of epothilones or epothilone derivatives, to certain compounds used to produce these key intermediates and to a process to produce said compounds.
    Type: Application
    Filed: April 21, 2005
    Publication date: May 11, 2006
    Inventors: Johannes Platzek, Orlin Petrov, Marc Willuhn, Klaus Graske, Werner Skuballa
  • Process for the production of 7alpha-methyl steroids
    Publication number: 20040010138
    Abstract: This invention relates to a process for the production of 7&agr;-methyl steroids of general formula I, 1
    Type: Application
    Filed: March 21, 2003
    Publication date: January 15, 2004
    Applicant: Schering AG
    Inventors: Marc Willuhn, Orlin Petrov, Evelin Amoulong-Kirstein, Stephan Vettel, Agnes Matzeit
  • N-methyl-homocysteines and their use as well as process for their production
    Publication number: 20030120032
    Abstract: The synthesis of N-methyl-homocysteines and their use are described.
    Type: Application
    Filed: November 15, 2002
    Publication date: June 26, 2003
    Applicant: Schering AG
    Inventors: Marc Willuhn, Johannes Platzek, Eckhard Ottow, Orlin Petrov, Claudia Borm, Dirk Hinz, Gregor Mann, John Lister-James, David M. Wilson
  • Zirconocenes and hafnocenes with boron-substituted cyclopentadienyl-ligands and the method of producing them
    Patent number: 5962718
    Abstract: Zirconocenes and hafnocenes with borylated cyclopentadienyl ligands and methods for the preparation thereof.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: October 5, 1999
    Assignee: Studiengesellschaft Kohle MbH
    Inventors: Manfred T. Reetz, Hanno Brummer, Christian Psiorz, Marc Willuhn