Patents by Inventor Werner Rosenthal

Werner Rosenthal 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).

  • Method of continuously preparing a sterile culture medium
    Patent number: 5508196
    Abstract: A method for continuously preparing a sterile culture medium comprises combining separate unsterilized fluid components in separate streams into a single mainstream. The mainstream is applied to a transverse flow filtration module having a membrane which separates the mainstream into a permeate and a retentate. The permeate is fed to a bioreactor and the retentate is diverted to a centrifuge to precipitate contaminants. The clarified retentate is returned into the mainstream upstream of the transverse flow filtration module.
    Type: Grant
    Filed: July 11, 1994
    Date of Patent: April 16, 1996
    Assignee: Westfalia Separator AG
    Inventors: Klaus Mannweiler, Ralf Kuchenbecker, Werner Rosenthal