Patents by Inventor Eberhard Breuker

Eberhard Breuker 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 for the fermentative production of L-amino acids from .alpha.-keto acids
    Patent number: 5200326
    Abstract: The invention is directed to a method of producing L-amino acids from .alpha.-ketocarboxylic acids by means of continuous fermentation with the aid of glutamate producing bacteria with biomass retention in which the cells are separated by microfiltration and/or centrifugal separators.
    Type: Grant
    Filed: May 1, 1987
    Date of Patent: April 6, 1993
    Assignee: Degussa AG
    Inventors: Christian Wandrey, Rolf Wichmann, Ulrich Groeger, Manfred Kircher, Wolfgang Leuchtenberger, Eberhard Breuker
  • Method for biological screening
    Patent number: 4421849
    Abstract: Disclosed is a method of screening or identifying a microorganism by providing two microorganism nutrient medium layers in communication with and separated by a sterilizable membrane filter, implanting at least one of the layers with a microorganism, and allowing an effective substance to permeate through the filter to enable microorganism identification.
    Type: Grant
    Filed: June 4, 1982
    Date of Patent: December 20, 1983
    Inventor: Eberhard Breuker