Patents by Inventor Marie-Noelle DESBOUCHE-JANNY

Marie-Noelle DESBOUCHE-JANNY 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: 10774414
    Abstract: Disclosed is a method for surface treatment of a steel component, providing high resistance to wear and corrosion, including nitriding or nitrocarburising to form a compound layer with a thickness of at least 8 micrometers made up of iron nitrides having phases ? and/or ??, oxidizing to generate a layer of oxides with a thickness of 0.1-3 micrometers, and soaking in an impregnation bath during at least 5 minutes at room temperature, the bath being made up of at least 70 wt %, ±1%, of a solvent made up of a mixture of hydrocarbons formed by a C9 to C17 alkane fraction, 10 to 30 wt %, ±1%, of at least one paraffin oil formed by a C16 to C32 alkane fraction, and at least one additive such as a synthetic phenolic additive with a concentration of 0.01 to 3 wt %, ±0.1%.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: September 15, 2020
    Assignee: H.E.F.
    Inventors: Pierre-Louis Magdinier, Marie-Noelle Desbouche-Janny
  • Publication number: 20170349997
    Abstract: Disclosed is a method for surface treatment of a steel component, providing high resistance to wear and corrosion, including nitriding or nitrocarburising to form a compound layer with a thickness of at least 8 micrometers made up of iron nitrides having phases ? and/or ??, oxidizing to generate a layer of oxides with a thickness of 0.1-3 micrometers, and soaking in an impregnation bath during at least 5 minutes at room temperature, the bath being made up of at least 70 wt %, ±1%, of a solvent made up of a mixture of hydrocarbons formed by a C9 to C17 alkane fraction, 10 to 30 wt %, ±1%, of at least one paraffin oil formed by a C16 to C32 alkane fraction, and at least one additive such as a synthetic phenolic additive with a concentration of 0.01 to 3 wt %, ±0.1%.
    Type: Application
    Filed: December 15, 2015
    Publication date: December 7, 2017
    Applicant: H.E.F.
    Inventors: Pierre-Louis MAGDINIER, Marie-Noelle DESBOUCHE-JANNY