Patents by Inventor Eberhard Wuenn

Eberhard Wuenn 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).

  • Patent number: 11285424
    Abstract: The present invention relates to a sheet material and filter element, where the sheet material and the filter element have a hydrophobic separating layer, and also to use thereof and to a process for production of same.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: March 29, 2022
    Inventors: Eberhard Wünn, Thomas Friese, Benjamin Schneider, Mario Strauss
  • Publication number: 20190329172
    Abstract: The present invention relates to a sheet material and filter element, where the sheet material and the filter element have a hydrophobic separating layer, and also to use thereof and to a process for production of same.
    Type: Application
    Filed: April 25, 2019
    Publication date: October 31, 2019
    Applicant: Sartorius Stedim Biotech GmbH
    Inventors: Eberhard Wünn, Thomas Friese, Benjamin Schneider, Mario Strauss
  • Patent number: 9833752
    Abstract: The present invention relates to a radiation-resistant microporous membrane having a hydrophobicity gradient, to a method for the preparation thereof, and to the use of the membrane in the sterilizing filtration of gaseous fluids or as a liquid barrier in liquid-containing systems to be vented.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: December 5, 2017
    Assignee: SARTORIUS STEDIM BIOTECH GMBH
    Inventors: Eberhard Wuenn, Tobias Schleuss
  • Patent number: 9364796
    Abstract: The present invention relates to a hydrophobic or oleophobic microporous polymer membrane having a structurally induced drip-off effect, to methods for producing the membrane according to the invention, to the use of the membrane in the sterile filtration of gaseous fluids, and to the use of the membrane as a liquid barrier in liquid-containing systems to be vented.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: June 14, 2016
    Assignee: Sartorius Stedim Biotech GmbH
    Inventors: Eberhard Wünn, Tobias Schleuss
  • Patent number: 9199928
    Abstract: The present invention relates to a new type of fluorescent with the following formula (I), its preparation process, and also an optical pH sensor which comprises this fluorescent dye immobilized on an analyte-permeable carrier.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: December 1, 2015
    Assignee: SARTORIUS STEDIM BIOTECH GMBH
    Inventors: Daniel Riechers, Eberhard Wuenn
  • Patent number: 9017997
    Abstract: The invention relates to a bioreactor for cultivating cells having a filter bag for separating culture fluid and cells, the filter medium of the filter bag having a degree of swelling of less than 1%. The bioreactor according to the invention is characterized by a high durability of the filter bag thereof.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: April 28, 2015
    Assignee: Sartorius Stedim Biotech GmbH
    Inventors: Eberhard Wuenn, Gerhard Greller, Thorsten Adams
  • Publication number: 20150007721
    Abstract: The present invention relates to a hydrophobic or oleophobic microporous polymer membrane having a structurally induced drip-off effect, to methods for producing the membrane according to the invention, to the use of the membrane in the sterile filtration of gaseous fluids, and to the use of the membrane as a liquid barrier in liquid-containing systems to be vented.
    Type: Application
    Filed: October 18, 2012
    Publication date: January 8, 2015
    Applicant: Sartorius Stedim Biotech GmbH
    Inventors: Eberhard Wünn, Tobias Schleuss
  • Patent number: 8779388
    Abstract: An optical sensor is provided with reduced sensitivity toward external light influences, fluorophores, and radiation, more particularly gamma radiation. The sensor is suitable for determining at least one parameter in a medium. The sensor has a matrix that contains a fluorescent dye. The matrix is supported by a transparent substrate and has a precious metal layer on the side facing the medium. The precious metal layer provides protection against photobleaching and radiation. The optical sensor is suitable for implementation in containers and laboratory products that are sterilized by gamma radiation, such as disposable bioreactors.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: July 15, 2014
    Assignee: Sartorius Stedim Biotech GmbH
    Inventors: Eberhard Wuenn, Reinhard Baumfalk, Daniel Riechers, Julia Lueders
  • Publication number: 20140080222
    Abstract: The present invention relates to a new type of fluorescent with the following formula (I), its preparation process, and also an optical pH sensor which comprises this fluorescent dye immobilized on an analyte-permeable carrier.
    Type: Application
    Filed: March 28, 2012
    Publication date: March 20, 2014
    Applicant: SARTORIUS STEDIM BIOTECH GMBH
    Inventors: Daniel Riechers, Eberhard Wuenn
  • Publication number: 20130139685
    Abstract: The present invention relates to a radiation-resistant microporous membrane having a hydrophobicity gradient, to a method for the preparation thereof, and to the use of the membrane in the sterilizing filtration of gaseous fluids or as a liquid barrier in liquid-containing systems to be vented.
    Type: Application
    Filed: August 9, 2011
    Publication date: June 6, 2013
    Applicant: SARTORIUS STEDIM BIOTECH GMBH
    Inventors: Eberhard Wuenn, Tobias Schleuss
  • Publication number: 20110266449
    Abstract: An optical sensor is provided with reduced sensitivity toward external light influences, fluorophores, and radiation, more particularly gamma radiation. The sensor is suitable for determining at least one parameter in a medium. The sensor has a matrix that contains a fluorescent dye. The matrix is supported by a transparent substrate and has a precious metal layer on the side facing the medium. The precious metal layer provides protection against photobleaching and radiation. The optical sensor is suitable for implementation in containers and laboratory products that are sterilized by gamma radiation, such as disposable bioreactors.
    Type: Application
    Filed: December 3, 2009
    Publication date: November 3, 2011
    Applicant: SARTORIUS STEDIM BIOTECH GMBH
    Inventors: Eberhard Wuenn, Reinhard Baumfalk, Daniel Riechers, Julia Lueders
  • Publication number: 20110020922
    Abstract: The invention relates to a bioreactor for cultivating cells having a filter bag for separating culture fluid and cells, the filter medium of the filter bag having a degree of swelling of less than 1%. The bioreactor according to the invention is characterized by a high durability of the filter bag thereof.
    Type: Application
    Filed: March 13, 2009
    Publication date: January 27, 2011
    Applicant: SARTORIUS STEDIM BIOTECH GMBH
    Inventors: Eberhard Wuenn, Gerhard Greller, Thorsten Adams
  • Patent number: 7311832
    Abstract: The present invention relates to adsorption membranes comprising microporous polymer membranes in which adsorbent particles are incorporated. Furthermore, the present invention relates to a method of producing the inventive adsorption membranes as well as devices which comprise the inventive adsorption membranes.
    Type: Grant
    Filed: September 27, 2004
    Date of Patent: December 25, 2007
    Assignee: Sartorius Stedim Biotech GmbH
    Inventors: Wolfgang Demmer, Stefan Fischer-Fruehholz, Andreas Kocourek, Dietmar Nussbaumer, Eberhard Wuenn
  • Patent number: 7223342
    Abstract: The present invention relates to adsorption membranes, comprising microporous polymer membranes into which are incorporated porous silicon dioxide particles modified with hydrocarbon ligands having 2 to 24 carbon atoms as adsorbent particles. Furthermore, the present invention relates to a method of producing the inventive adsorption membranes as well as devices which comprise the inventive adsorption membranes.
    Type: Grant
    Filed: September 27, 2004
    Date of Patent: May 29, 2007
    Assignee: Sartorius AG
    Inventors: Wolfgang Demmer, Stefan Fischer-Fruehholz, Andreas Kocourek, Dietmar Nusbaumer, Eberhard Wuenn
  • Publication number: 20050121385
    Abstract: The present invention relates to adsorption membranes, comprising microporous polymer membranes into which are incorporated porous silicon dioxide particles modified with hydrocarbon ligands having 2 to 24 carbon atoms as adsorbent particles. Furthermore, the present invention relates to a method of producing the inventive adsorption membranes as well as devices which comprise the inventive adsorption membranes.
    Type: Application
    Filed: September 27, 2004
    Publication date: June 9, 2005
    Inventors: Wolfgang Demmer, Stefan Fischer-Fruehholz, Andreas Kocourek, Dietmar Nusbaumer, Eberhard Wuenn
  • Publication number: 20050115890
    Abstract: The present invention relates to adsorption membranes comprising microporous polymer membranes in which adsorbent particles are incorporated. Furthermore, the present invention relates to a method of producing the inventive adsorption membranes as well as devices which comprise the inventive adsorption membranes.
    Type: Application
    Filed: September 27, 2004
    Publication date: June 2, 2005
    Inventors: Wolfgang Demmer, Stefan Fischer-Fruehholz, Andreas Kocourek, Dietmar Nussbaumer, Eberhard Wuenn