Patents by Inventor Paul Hengster

Paul Hengster 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).

  • Reactor and reactor unit with hollow fibers
    Patent number: 8557571
    Abstract: A reactor has a reactor unit with a first chamber and a second chamber, with the first chamber being formed by the interior of a housing and the second chamber being formed by the interior of a plurality of hollow fibers arranged in the housing. The hollow fibers are arranged in the housing such that their density in at least one region of the first chamber does not exceed 10 fibers/mm2, based on the cross-sectional area of the first chamber. The reactor unit can include two casting compounds, in which a portion of the hollow fibers are embedded and between which another portion of the hollow fibers extends. The length of at least some or all of the hollow fibers is at least 0.5% greater than the distance of the casting compounds.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: October 15, 2013
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Franz Kugelmann, Paul Hengster, Raimund Margreiter, Bernd Nederlof, Massimo Fini, Ciro Tetta, Thomas Wild, Micaela Yakubovich, Michael Paul, Marco Caronna
  • Reactor And Reactor Unit With Hollow Fibers
    Publication number: 20080145926
    Abstract: This invention relates to a reactor unit with a first chamber and a second chamber, wherein the first chamber is formed by the interior of a housing and wherein the second chamber is formed by the interior of a plurality of hollow fibers arranged in the housing. The hollow fibers are arranged in the housing such that their density in at least one region of the first chamber does not exceed 10 fibers/mm2, based on the cross-sectional area of the first chamber. In accordance with another aspect of the invention it is provided that in the reactor unit two casting compounds are arranged, in which a portion of the hollow fibers is embedded and between which another portion of the hollow fibers extends, wherein the length of at least some or all hollow fibers is at least 0.5% greater than the distance of the casting compounds.
    Type: Application
    Filed: December 22, 2005
    Publication date: June 19, 2008
    Inventors: Franz Kugelmann, Paul Hengster, Raimund Margreiter, Bernd Nederlof, Massimo Fini, Ciro Tetta, Thomas Wild, Micaela Yakubovich, Michael Paul, Marco Caronna
  • Bioartificial device for the storage, cultivation and/or multiplication of cells
    Patent number: 7067307
    Abstract: The bioartificial reactor has a reactor vessel. A cell culture chamber in the reactor, in particular for liver cells, is divided off from a flow chamber for a nutritive medium and from a flow chamber for plasma and blood by semipermeable walls. At least one flow chamber is formed as a tube that is helically wound in the shape of a screw and that is made of semipermeable material.
    Type: Grant
    Filed: August 14, 2003
    Date of Patent: June 27, 2006
    Assignee: Raimung Margreiter
    Inventors: Boris-Wolfgang Hochleitner, Paul Hengster
  • Bioartificial device for the storage, cultivation and/or multiplication of cells
    Publication number: 20040033593
    Abstract: The bioartificial reactor has a reactor vessel. A cell culture chamber in the reactor, in particular for liver cells, is divided off from a flow chamber for a nutritive medium and from a flow chamber for plasma and blood by semipermeable walls. At least one flow chamber is formed as a tube that is helically wound in the shape of a screw and that is made of semipermeable material.
    Type: Application
    Filed: August 14, 2003
    Publication date: February 19, 2004
    Inventors: Boris-Wolfgang Hochleitner, Paul Hengster