Patents by Inventor Holger Lichau

Holger Lichau 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 capillary membrane and method for the production thereof
    Patent number: 9149770
    Abstract: A hollow fiber membrane made of two coextruded layers A and B, wherein layer B has a non-woven type structure having a mesh size of 0.1 to 10 ?m and layer A has a porous structure. A method for producing a membrane according to the invention and the use thereof is also disclosed.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: October 6, 2015
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Rainer Fislage, Klaus Heilmann, Torsten Keller, Holger Lichau, Igor Raiko, Roland Sander
  • HOLLOW FIBER CAPILLARY MEMBRANE AND METHOD FOR THE PRODUCTION THEREOF
    Publication number: 20100326915
    Abstract: The present invention relates to a hollow fiber membrane made of two coextruded layers A and B, wherein layer B has a non-woven type structure having a mesh size of 0.1 to 10 ?m and layer A has a porous structure. The present invention further relates to a method for producing a membrane according to the invention and the use thereof.
    Type: Application
    Filed: April 21, 2008
    Publication date: December 30, 2010
    Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: RAINER FISLAGE, KLAUS HEILMANN, TORSTEN KELLER, HOLGER LICHAU, IGOR RAIKO, ROLAND SANDER
  • HOLLOW FIBER CAPILLARY MEMBRANE AND METHOD FOR THE PRODUCTION THEREOF
    Publication number: 20100163488
    Abstract: A hollow fiber membrane made of two coextruded layers A and B, wherein layer B has a non-woven type structure having a mesh size of 0.1 to 10 ?m and layer A has a porous structure. A method for producing a membrane according to the invention and the use thereof is also disclosed.
    Type: Application
    Filed: April 21, 2008
    Publication date: July 1, 2010
    Inventors: Rainer Fislage, Klaus Heilmann, Torsten Keller, Holger Lichau, Igor Raiko, Roland Sander