Patents by Inventor Helmut Schoen

Helmut Schoen 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).

  • Patent number: 8225756
    Abstract: Disclosed is an adjusting mechanism for rotating the adjusting shaft of a variable valve control device for combustion engines, in which the crank of a crank-rocker mechanism or slider-crank mechanism is mounted on the camshaft and in which the rocker of the crank-rocker mechanism or the slider of the slider-crank mechanism can entrain the adjusting shaft in the desired direction of rotation by means of switchable freewheels.
    Type: Grant
    Filed: February 7, 2006
    Date of Patent: July 24, 2012
    Assignee: ThyssenKrupp Presta TecCenter AG
    Inventors: Helmut Schoen, Peter Kuhn, Gordon Koehne, Patric Hoecker
  • Patent number: 7820801
    Abstract: A method for producing solid proteinase K which is insoluble in water and has high purity, the method comprising the steps of adding to an aqueous solution of proteinase K ammonium sulfate in an amount of 0.1 to 0.2 M per 5 minutes up to a final amount of 1.5 to 2 M after 1 hour, thereby precipitating the proteinase K as a solid, and isolating the solid proteinase K.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: October 26, 2010
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Helmut Schoen, Guenter Guertler, Bernhard Rexer, Johann-Peter Thalhofer
  • Publication number: 20090194048
    Abstract: Disclosed is an adjusting mechanism for rotating the adjusting shaft of a variable valve control device for combustion engines, in which the crank of a crank-rocker mechanism or slider-crank mechanism is mounted on the camshaft and in which the rocker of the crank-rocker mechanism or the slider of the slider-crank mechanism can entrain the adjusting shaft in the desired direction of rotation by means of switchable freewheels.
    Type: Application
    Filed: February 7, 2006
    Publication date: August 6, 2009
    Applicant: ThyssenKrupp Presta AG
    Inventors: Helmut Schoen, Peter Kuhn, Gordon Koehne, Patric Hoecker
  • Patent number: 7368274
    Abstract: The invention concerns a method for the expression of a gene coding for a soluble proteinase K in yeast e.g. in Pichia pastoris with subsequent secretion into the culture medium. In addition a method for purifying the heterologously expressed and secreted proteinase K is described.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: May 6, 2008
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Rainer Mueller, Johann-Peter Thalhofer, Frank Geipel, Stephan Glaser, Werner Hoelke, Helmut Schoen, Thomas Kirschbaum
  • Publication number: 20070179280
    Abstract: A method for producing solid proteinase K which is insoluble in water and has high purity, the method comprising the steps of adding to an aqueous solution of proteinase K ammonium sulfate in an amount of 0.1 to 0.2 M per 5 minutes up to a final amount of 1.5 to 2 M after 1 hour, thereby precipitating the proteinase K as a solid, and isolating the solid proteinase K.
    Type: Application
    Filed: September 29, 2006
    Publication date: August 2, 2007
    Inventors: Helmut Schoen, Guenter Guertler, Bernhard Rexer, Johann-Peter Thalhofer
  • Publication number: 20070099283
    Abstract: The invention concerns recombinant proteinase K. Furthermore a method for producing recombinant proteinase K is disclosed, which is characterized in that a) a host cell is transformed with a recombinant nucleic acid which codes for the zymogenic precursor of proteinase K, b) the host cell is cultured in such a manner that the zymogenic precursor of proteinase K is formed in the form of inclusion bodies in the host cell, c) the inclusion bodies are isolated and natured under conditions which result in the formation of the protease part of the zymogenic precursor in its natural conformation, d) the natured proteinase K is activated and purified.
    Type: Application
    Filed: February 8, 2002
    Publication date: May 3, 2007
    Inventors: Rainer Mueller, Johann-Peter Thalhofer, Bernhard Rexer, Rainer Schmuck, Frank Geipel, Stephan Glaser, Helmut Schoen, Thomas Meier, Rainer Rudolph, Hauke Lilie, Bjoern Schott
  • Patent number: 7118901
    Abstract: A method is provided for the production of a bovine pancreatic protein with a specific desoxyribonuclease activity of at least 6,000 units per mg of protein. Methylotrophic yeast is used as a heterologous host organism. The bovine pancreatic protein is secreted into the growth medium from which it is purified.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: October 10, 2006
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Bernhard Suppmann, Johann-Peter Thalhofer, Stephanie Ronning, Helmut Schoen, Rainer Müller
  • Publication number: 20040259197
    Abstract: A method is provided for the production of a bovine pancreatic protein with a specific desoxyribonuclease activity of at least 6,000 units per mg of protein. Methylotrophic yeast is used as a heterologous host organism. The bovine pancreatic protein is secreted into the growth medium from which it is purified.
    Type: Application
    Filed: December 16, 2003
    Publication date: December 23, 2004
    Inventors: Bernhard Suppmann, Johann-Peter Thalhofer, Stephanie Ronning, Helmut Schoen, Rainer Muller
  • Publication number: 20040248272
    Abstract: According to the invention, the desoxyribonuclease with increased thermolability is a variant, by way of amino acid substitution, of bovine pancreatic desoxyribonuclease I. The variant protein retains desoxyribonuclease activity. Moreover, the specific desoxyribonuclease activity of the variant of bovine pancreatic desoxyribonuclease I is approximately zero units per mg of protein following heating of the variant of bovine pancreatic desoxyribonuclease I for about 5 min at a temperature below 95° C. In addition, the variant of bovine pancreatic desoxyribonuclease I has no measurable ribonuclease activity.
    Type: Application
    Filed: December 19, 2003
    Publication date: December 9, 2004
    Inventors: Rainer Muller, Thomas Kirschbaum, Bernhard Suppmann, Helmut Schoen, Richard Engh, Artur Hoffmann, Johann-Peter Thalhofer, Joachim Siedel, Wolf-Dieter Engel
  • Publication number: 20040166560
    Abstract: The invention concerns a method for the expression of a gene coding for a soluble proteinase K in yeast e.g. in Pichia pastoris with subsequent secretion into the culture medium. In addition a method for purifying the heterologously expressed and secreted proteinase K is described.
    Type: Application
    Filed: April 5, 2004
    Publication date: August 26, 2004
    Inventors: Rainer Mueller, Johann-Peter Thalhofer, Frank Geipel, Stephan Glaser, Werner Hoelke, Helmut Schoen, Thomas Kirschbaum