Patents by Inventor Manfred Bobbert

Manfred Bobbert 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-based microporous membrane
    Patent number: 7381330
    Abstract: There is disclosed a cellulosic microporous filtration membrane with upper and lower porous protective layers with a porous sponge-type intermediate layer between the two protective layers, wherein the sponge-type structure consists of two isotropic regions having different pore sizes.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: June 3, 2008
    Assignee: Sartorius Stedim Biotech GmbH
    Inventors: Rebecca Petersen, Markus Hollas, Hans Beer, Manfred Bobbert
  • Cellulose-based microporous membrane
    Publication number: 20070026219
    Abstract: There is disclosed a cellulosic microporous filtration membrane with upper and lower porous protective layers with a porous sponge-type intermediate layer between the two protective layers, wherein the sponge-type structure consists of two isotropic regions having different pore sizes.
    Type: Application
    Filed: June 8, 2004
    Publication date: February 1, 2007
    Applicant: Sartorius AG
    Inventors: Rebecca Petersen, Markus Hollas, Hans Beer, Manfred Bobbert