Patents by Inventor Hans-Jurgen Michel

Hans-Jurgen Michel 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: 7855189
    Abstract: The invention relates to N-phenylphosphoric acid triamides of general formula (I) to a method for the production thereof and to their use as agents for regulating or inhibiting enzymatic urea hydrolysis.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: December 21, 2010
    Assignee: SKW Stickstoffwerke Piesteritz GmbH
    Inventors: André Hucke, Hans-Joachim Niclas, Hartmut Wozniak, Hans-Jürgen Michel, Carola Schuster
  • Publication number: 20080070871
    Abstract: The invention relates to N-phenylphosphonic acid triamides of general formula (I), to a method for the production thereof and to their use as agents for regulating or inhibiting enzymatic urea hydrolysis.
    Type: Application
    Filed: February 4, 2005
    Publication date: March 20, 2008
    Inventors: Andre Hucke, Hans-Joachim Niclas, Hartmut Wozniak, Hans-Jurgen Michel, Carola Schuster
  • Patent number: 6066190
    Abstract: This patent describes nitrification inhibitors characterized by the fact that they contain as their active ingredients 1-hydro-1,2,4-triazole, a substituted 1-hydro-1,2,4-triazole, or their salts or metallic complexes, plus at least one other chemical compound, such as a substituted pyrazole, or its salts or metallic complexes, dicyanodiamide, guanyl thiocarbamide, thiocarbamide, ammonium rhodanide, or ammonium thiosulfate, where said combination exhibit readily recognizable synergetic effects compared to the case where said chemical compounds are employed alone, and thus provide benefits in terms of better efficacies, reduced dosages, and/or cost savings.
    Type: Grant
    Filed: January 5, 1999
    Date of Patent: May 23, 2000
    Assignee: SKW Stickstoffwerke
    Inventors: Margrit Grabarse, Sieghard Lang, Hans-Jurgen Michel, Hartmut Wozniak
  • Patent number: 5951736
    Abstract: This patent describes nitrification inhibitors characterized by the fact that they contain as their active ingredients 1-hydro-1,2,4-triazole, a substituted 1-hydro-1,2,4-triazole, or their salts or metallic complexes, plus at least one other chemical compound, such as a substituted pyrazole, or its salts or metallic complexes, dicyanodiamide, guanyl thiocarbamide, thiocarbamide, ammonium rhodanide, or ammonium thiosulfate, where said combinations exhibit readily recognizable synergetic effects compared to the case where said chemical compounds are employed alone, and thus provide benefits in terms of better efficacies, reduced dosages, and/or cost savings.
    Type: Grant
    Filed: August 13, 1996
    Date of Patent: September 14, 1999
    Assignee: SKW Stickstoffwerke Piesteritz GmbH
    Inventors: Margrit Grabarse, Sieghard Lang, Hans-Jurgen Michel, Hartmut Wozniak
  • Patent number: 5741345
    Abstract: This patent describes nitrification inhibitors characterized by the fact that they contain as their active ingredients a substituted pyrazole, or a salt or metallic complex thereof, dicyanodiamide, and one of the compoundsammonium thiosulfate,biguanide, orammonium rhodanide. The combinations of the present invention are more efficacious than the individual ingredients alone and binary combinations of the same ingredients, and are thus superior to same from the ecological, phytotoxicity, and cost-effectiveness stand-points, as well as in terms of their tendencies to form undesirable residues.
    Type: Grant
    Filed: August 13, 1996
    Date of Patent: April 21, 1998
    Assignee: SKW Stickstoffwerke Piesteritz GmbH
    Inventors: Margrit Grabarse, Sieghard Lang, Hans-Jurgen Michel, Hartmut Wozniak