Patents by Inventor Yuag-Shan Kevin Chou

Yuag-Shan Kevin Chou 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).

  • Fabrication method for diamond film coating of drill bit
    Patent number: 9457412
    Abstract: Tungsten carbide drill bits for removing material from alloys and other hard materials are disclosed. A conventional drill bit is modified by removing material from the forward portion of the bit to increase the radius of the cutting edge. The drill bit is then coated with a nanostructured diamond film using a chemical vapor deposition process.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: October 4, 2016
    Assignee: The Board of Trustees of the University of Alabama for and on behalf of the University of Alabama
    Inventors: Yuag-Shan Kevin Chou, Raymond G. Thompson