Patents by Inventor Lutz Hilprecht

Lutz Hilprecht 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).

  • Process for simultaneously preparing caprolactam and hexamethylene diamine
    Patent number: 6147208
    Abstract: Caprolactam and hexamethylenediamine are prepared simultaneously starting from adiponitrile.
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: November 14, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Gunther Achhammer, Peter Bassler, Rolf Fischer, Eberhard Fuchs, Hermann Luyken, Werner Schnurr, Guido Voit, Lutz Hilprecht
  • Process for distilling ethylene oxide
    Patent number: 6123812
    Abstract: A process for distilling ethylene oxide out of a mixture including ethylene oxide in a column at an absolute pressure of from 2 to 10 bar and a temperature of 20 to 180.degree. C. by withdrawing pure ethylene oxide in the liquid or gaseous state overhead or via a sidestream in the rectifying section of the column includes effecting the distillation in a column having on its inside a plurality of successive zones of structured sheet-metal packing or dumped beds of packing elements, these zones being assigned one or more extinguishing systems on the outside of the column.
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: September 26, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Bessling, Sebastian Zeck, Jurgen Pluckhan, Thomas Mayer, Ulrich Loffler, Gunter Spiegel, Rubens Ballenweg, Gerhard Brudi, Klaus Gieselberg, Lutz Hilprecht, Winfried Terjung, Heinz Auer, Axel Werner Polt, Stephan Scholl