Patents by Inventor Frans M. Kornorffer

Frans M. Kornorffer 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 cyclopentadiene derivatives
    Patent number: 7253292
    Abstract: A process for preparing cyclopentadiene derivatives comprising the steps of: a) coupling a five membered heterocycle ring with a five or six membered heterocycle ring; b) reacting the obtained compound with a carbonilating system: c) reducing the obtained compound.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: August 7, 2007
    Assignee: Basell Polyolefine GmbH
    Inventors: Ilya E. Nifant'ev, Igor A Kashulin, Pavel V. Ivchenko, Peter A. A. Klusener, Frans M. Kornorffer, Kees P. De Kloe, Jos J. H. Rijsemus
  • Synthesis of cyclopentadiene derivatives
    Publication number: 20040236115
    Abstract: A process for preparing cyclopentadiene derivatives comprising the steps of: a) coupling a five membered heterocycle ring with a five or six membered heterocycle ring; b) reacting the obtained compound with a carbonilating system: c) reducing the obtained compound.
    Type: Application
    Filed: November 10, 2003
    Publication date: November 25, 2004
    Inventors: Ilya E Nifantev, Igor A. Kashulin, Pavel V. Ivchenko, Peter A.A. Klusener, Frans M. Kornorffer, Kees P. De Kloe, Jos J.H. Rijsemus