Patents by Inventor Nikolaus Stephan Pfeiffer

Nikolaus Stephan Pfeiffer 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).

  • Continuous countercurrent chromatography system
    Patent number: 7815799
    Abstract: A continuous countercurrent chromatography system has several rotating chambers arranged around a rotational axis. The chambers are provided for receiving a liquid or liquid mixture to be examined, and the individual chambers are interconnected via liquid carrying connections in such a way as to relay two liquids in countercurrent, wherein one liquid first passes through several chambers and is then returned to the chambers first traversed.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: October 19, 2010
    Inventor: Nikolaus Stephan Pfeiffer
  • CONTINUOUS COUNTERCURRENT CHROMATOGRAPHY SYSTEM
    Publication number: 20090173680
    Abstract: A continuous countercurrent chromatography system has several rotating chambers arranged around a rotational axis. The chambers are provided for receiving a liquid or liquid mixture to be examined, and the individual chambers are interconnected via liquid carrying connections in such a way as to relay two liquids in countercurrent, wherein one liquid first passes through several chambers and is then returned to the chambers first traversed.
    Type: Application
    Filed: May 14, 2007
    Publication date: July 9, 2009
    Inventor: Nikolaus Stephan Pfeiffer