Patents by Inventor Marc Steen

Marc Steen 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).

  • Method and device for producing a controlled atmosphere with low oxygen partial pressure
    Patent number: 6332959
    Abstract: The present invention concerns a method for producing a controlled atmosphere having an oxygen partial pressure of below 10−13 Pa and an operating temperature above 1000° C. According to the invention a furnace is vented by a gas mixture having an oxygen partial pressure lower than 10−8 Pa but higher than that of said controlled atmosphere, and that a partial volume of said furnace is submitted to a static electric field having a strength of at least 6V/cm and reducing the oxygen partial pressure in this partial volume by orders of magnitude. The invention also relates to a device for implementing this method.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: December 25, 2001
    Assignee: European Atomic Energy Community
    Inventors: Michael Hoffmann, Marc Steen, Victor Harrison, Robert Danzer