Patents by Inventor Dietmar Nußbaumer

Dietmar Nußbaumer 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).

  • CELLULOSE HYDRATE MEMBRANE, METHOD FOR THE PRODUCTION THEREOF, AND USE THEREOF
    Publication number: 20110147292
    Abstract: There is provided a cellulose hydrate membrane having a porous double structure which consists of micropores having a diameter in the range from >100 nm to 20 ?m and ultrapores which have a diameter of <100 nm and which are not accessible to Blue Dextran having an average molecular weight Mw of 2 000 000, wherein the fraction of the volume of the ultrapores is more than 15% of the entire pore volume accessible to water. In addition, a method for producing the membrane, its use as an adsorption membrane, and an apparatus for membrane chromatography are specified.
    Type: Application
    Filed: February 10, 2009
    Publication date: June 23, 2011
    Applicant: SARTORIUS STEDIM BIOTECH GMBH
    Inventors: Wolfgang Demmer, René Faber, Hans-Heinrich Hörl, Csilla Kiss, Dietmar Nußbaumer