Patents by Inventor Hans-Joachim Knackmuss

Hans-Joachim Knackmuss 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
  • Enzymatic synthesis of optically active hydroxamic acids and their conversion to optically active primary amines by a lossen rearrangement
    Patent number: 6281003
    Abstract: A method is described for the preparation of optically active hydroxamic acids of the general formula wherein R1, R2 and R3 are different and are a cyclic or linear, aliphatic or aromatic, substituted or unsubstituted hydrocarbon radical which can optionally contain heteroatoms, said method being characterized in that a racemate of chiral amides, carboxylic acid esters or carboxylic acids of the general formula wherein R1, R2 and R3 are as defined above and X is —NH2, —OR or —OH, R being any organic radical, is reacted with hydroxylamine, NH2OH, in the presence of an acyltransferase, and the optically active hydroxamic acid (I) formed is then separated from the unconverted enantiomer of general formula (II). The resulting optically active hydroxamic acid can be converted to the corresponding optically active primary amines by a Lossen rearrangement.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: August 28, 2001
    Assignee: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e. V.
    Inventors: Beate Hirrlinger, Andreas Stolz, Hans-Joachim Knackmuss
  • Microbiological method for eliminating halogenated ethenes
    Patent number: 6218172
    Abstract: Process for the microbiological clean up of halogenated ethenes, characterized in that bacterial strains which are growing with ethene as carbon and energy source and break down halogenated ethenes are preadapted with ethene as carbon and energy source for new formation and for energy supply and are contacted in an aerobic bioreactor with the halogenated ethenes to be cleaned up.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: April 17, 2001
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V.
    Inventors: Petra Koziollek, Dieter Bryniox, Hans-Joachim Knackmuss