Patents by Inventor Roger Berneron

Roger Berneron 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 the improvement of the corrosion resistance of metallic materials
    Patent number: 5062900
    Abstract: A subject of the invention is a process for improving the corrosion resistance of a metallic material, characterized in that the metallic material is subjected cold to a surface treatment by a low-temperature plasma, at a pressure of 1 to 10.sup.3 Pa in an atmosphere comprising at least one gas chosen from the following; oxygen, ozone, nitrogen, hydrogen, air, carbon dioxide, carbon monoxide, the oxides of nitrogen, water, combustion gases and mixtures of these with a neutral gas.
    Type: Grant
    Filed: December 14, 1989
    Date of Patent: November 5, 1991
    Assignee: Institut de Recherches de la Siderurgie Francaise
    Inventors: Roger Berneron, Pierre de Gelis