Patents by Inventor Gerhard Herres

Gerhard Herres 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).

  • Hollow fiber membrane module
    Patent number: 7128837
    Abstract: The present invention relates to hollow fiber membrane modules for use as “immersion modules” in filtration and/or dialysis methods, in particular whenever impairments due to fouling effects are expected from the use of liquids that are contaminated or lead to deposits. The hollow fiber membrane module comprises at least one housing and a plurality of tubular hollow fiber membranes which are arranged parallel to one another in and/or around the housing in a packing space, wherein the volumetric ratio of all the hollow fiber membranes arranged in the packing space to the packing space is less than 20%. Methods for producing such hollow fiber membrane modules are also provided.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: October 31, 2006
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Ulrich Behrendt, Reinhard Gergen, Franz-Josef Gerner, Gerhard Herres, Berthold Szperalski, Eckehard Walitza, Wolfram Weber
  • Hollow fiber membrane module
    Publication number: 20060124531
    Abstract: The present invention relates to hollow fiber membrane modules for use as “immersion modules” in filtration and/or dialysis methods, in particular whenever impairments due to fouling effects are expected from the use of liquids that are contaminated or lead to deposits. The hollow fiber membrane module comprises at least one housing and a plurality of tubular hollow fiber membranes which are arranged parallel to one another in and/or around the housing in a packing space, wherein the volumetric ratio of all the hollow fiber membranes arranged in the packing space to the packing space is less than 20%. Methods for producing such hollow fiber membrane modules are also provided.
    Type: Application
    Filed: February 8, 2006
    Publication date: June 15, 2006
    Inventors: Ulrich Behrendt, Reinhard Gergen, Franz-Josef Gerner, Gerhard Herres, Berthold Szperalski, Eckehard Walitza, Wolfram Weber
  • Hollow fiber membrane module
    Publication number: 20020179516
    Abstract: The present invention relates to hollow fiber membrane modules for use as “immersion modules” in filtration and/or dialysis methods, in particular whenever impairments due to fouling effects are expected from the use of liquids that are contaminated or lead to deposits. The hollow fiber membrane module comprises at least one housing and a plurality of tubular hollow fiber membranes which are arranged parallel to one another in and/or around the housing in a packing space, wherein the volumetric ratio of all the hollow fiber membranes arranged in the packing space to the packing space is less than 20%. Methods for producing such hollow fiber membrane modules are also provided.
    Type: Application
    Filed: February 14, 2002
    Publication date: December 5, 2002
    Inventors: Ulrich Behrendt, Reinhard Gergen, Franz-Josef Gerner, Gerhard Herres, Berthold Szperalski, Eckehard Walitza, Wolfram Weber