Patents by Inventor John L. Yuscinsky

John L. Yuscinsky 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 apparatus for in-situ solid state doping of CVD diamonds and diamonds so made
    Patent number: 6274837
    Abstract: The method of the present invention includes placing a solid dopant in or near the nozzle of a DC arc jet. According to one embodiment of the invention, the interior surface of an arc jet nozzle is coated with a layer of copper by brushing the surface with a copper brush. According to another embodiment of the invention, the interior surface of an arc jet nozzle is coated with a layer of copper by plating it with copper. According to another embodiment of the invention, a copper cylinder is placed inside an arc jet nozzle. Apparatus according to the invention include a DC arc jet with a solid dopant placed in or near the nozzle according to one of the methods described. Diamonds according to the invention are conductive diamonds formed by a plasma jet process where a solid dopant was placed in or near the nozzle according to one of the methods described.
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: August 14, 2001
    Assignee: Saint-Gobain Industrial Ceramics, Inc.
    Inventors: Henry Windischmann, John L. Yuscinsky