Patents by Inventor Hans-Jorg Hunger

Hans-Jorg Hunger 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).

  • Process for producing wear-resistant boride layers on metallic material surfaces
    Publication number: 20010041230
    Abstract: A process is provided for producing wear-resistant boride layers on metal material surfaces. The process is characterized in that a boron halide selected from the group comprising boron trifluoride, boron tribromide, boron triiodide and their mixtures is mixed with hydrogen and optionally argon and/or nitrogen, in order to produce a reaction gas containing between 0.1 and 30 vol % boron halide. The resultant mixture is activated by a plasma discharge whereby boron is transferred from the plasma to the metal surface.
    Type: Application
    Filed: April 6, 2000
    Publication date: November 15, 2001
    Inventors: Hans-Jorg Hunger, Gunter Lobig, Gerhard Trute
  • Process for producing wear-resistant boride layers on metallic material surfaces
    Patent number: 6306225
    Abstract: A process is provided for producing wear-resistant boride layers on metal material surfaces. The process is characterized in that a boron halide selected from the group comprising boron trifluoride, boron tribromide, boron triiodide and their mixtures is mixed with hydrogen and optionally argon and/or nitrogen, in order to produce a reaction gas containing between 0.1 and 30 vol % boron halide. The resultant mixture is activated by a plasma discharge whereby boron is transferred from the plasma to the metal surface.
    Type: Grant
    Filed: April 6, 2000
    Date of Patent: October 23, 2001
    Assignee: Bor Tec GmbH
    Inventors: Hans-Jorg Hunger, Gunter Lobig, Gerhard Trute