Patents by Inventor Martin Stürmann

Martin Stürmann 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).

  • Enantiomerically enriched 2-butanol
    Patent number: 7396964
    Abstract: The present invention relates to a process for preparing enantiomerically enriched 2-butanol and to its use.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: July 8, 2008
    Assignee: LANXESS Deutschland GmbH
    Inventors: Björn Schlummer, Martin Stürmann
  • Modified supported metathesis catalysts
    Patent number: 7145050
    Abstract: The invention relates to modified supported catalysts based on Re2O7/?-Al2O3 for use in the preparation of cycloalkadienes in a metathesis reaction, a process for preparing cycloalkadienes in the presence of these supported catalysts and the use of the resulting cycloalkadienes for the preparation of fragrances.
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: December 5, 2006
    Assignee: Symrise GmbH & Co. KG
    Inventors: Ingo Wöhrle, Aurélia Reckziegel, Peter Esser, Martin Stürmann
  • Continuous process for the synthesis of nano-scale precious metal particles
    Patent number: 6706902
    Abstract: The present invention relates to the continuous production of nano-scale precious metal particles on SiH-containing support materials, the compositions themselves, and the use of these precious metal-containing compositions as catalyst. The continuous process according to the invention includes impregnating support materials and, after thermal activation, drying the support materials by spraying or by fluidized bed technology leads to form precious metal-containing support compositions that are active in the catalysis of oxidation reactions. The catalytically active precious metal-containing support compositions exhibit high selectivities and productivities and have very long catalyst service lives without deactivation. The invention also relates to a process for the oxidation of hydrocarbons in the presence of oxygen, a reducing agent and the precious-metal containing support compositions of the present invention.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: March 16, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Martin Stürmann, Markus Weisbeck, Gerhard Wegener, Frank Zbrozek