Patents Assigned to Herzog, Stefan
  • Ancillary filtering agent
    Patent number: 6871746
    Abstract: The filter aid comprises finely divided plant fibers, which for a period of action have been subjected to a liquid treatment, which removes the sensorially active substances from the plant fibers.
    Type: Grant
    Filed: March 4, 1998
    Date of Patent: March 29, 2005
    Assignee: Herzog, Stefan
    Inventor: Josef Otto Rettenmaier