Patents by Inventor Gerhard Rieger

Gerhard Rieger 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 biological breakdown of effluent containing nitroaromatics
    Patent number: 7413655
    Abstract: A method for the biodegradation of nitroaromatic-containing wastewater, including: (a) providing activated sludge as biological matrix, (b) adding a nitroaromatic-degrading microorganism to the activated sludge, (c) adding nitroaromatic-containing wastewater to the material of step (b) and (d) adding at least one carbon source which is more readily utilizable than the nitroaromatic to be degraded to the material of step (c).
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: August 19, 2008
    Assignee: Universitat Stuttgart
    Inventors: Olaf Dickel, Hans-Joachim Knackmuss, Paul-Gerhard Rieger
  • Method for the biological breakdown of effluent containing nitroaromatics
    Publication number: 20060115887
    Abstract: A method for the biodegradation of nitroaromatic-containing wastewater, including: (a) providing activated sludge as biological matrix, (b) adding a nitroaromatic-degrading microorganism to the activated sludge, (c) adding nitroaromatic-containing wastewater to the material of step (b) and (d) adding at least one carbon source which is more readily utilizable than the nitroaromatic to be degraded to the material of step (c).
    Type: Application
    Filed: December 14, 2005
    Publication date: June 1, 2006
    Inventors: Olaf Dickel, Hans-Joachim Knackmuss, Paul-Gerhard Rieger
  • Use of alkoxylated phenol derivatives
    Publication number: 20030078305
    Abstract: Compounds of the general formula (I) 1
    Type: Application
    Filed: August 19, 2002
    Publication date: April 24, 2003
    Inventors: Helmut-Martin Meier, Hans-Joachim Knackmuss, Paul-Gerhard Rieger
  • Alkoxylated phenol derivatives
    Publication number: 20020132737
    Abstract: The invention relates to compounds of the formula (I) 1
    Type: Application
    Filed: August 29, 2001
    Publication date: September 19, 2002
    Inventors: Helmut-Martin Meier, Hans-Joachim Knackmuss, Paul-Gerhard Rieger
  • Leather dressing composition of an aqueous emulsion of solvent solutions of substituted celluloses and polyurethanes
    Patent number: 4066818
    Abstract: A composition for dressing leather and leather substitutes comprising an aqueous emulsion of (A) an organic solvent solution of nitrocellulose or cellulose acetate butyrate and (B) an organic solvent solution of a linear polyurethane resin, in a ratio of A : B of 1 : 0.1 to 1 : 10.
    Type: Grant
    Filed: September 20, 1976
    Date of Patent: January 3, 1978
    Assignee: KEPEC Chemische Fabrik GmbH
    Inventors: Peter Junge, Horst Schulz, Rainer Schneider, Werner Dreke, Gerhard Rieger