Patents by Inventor Bernd Rüffer

Bernd Rüffer 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).

  • Processes for separating carbon monoxide from a hydrogen chloride-containing gas
    Patent number: 7612234
    Abstract: Processes for separating carbon monoxide from a hydrogen chloride-containing gas, which comprise reacting the carbon monoxide with chlorine to form phosgene and then optionally separating the phosgene from the hydrogen chloride-containing gas. The hydrogen chloride-containing gas that is used preferably derives from a phosgenation or isocyanate forming reaction.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: November 3, 2009
    Assignee: Bayer MaterialScience AG
    Inventors: Michel Haas, Dietmar Wastian, Tim Loddenkemper, Bernd Rüffer