Patents by Inventor James Winfield Mitchell

James Winfield Mitchell 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).

  • Devices comprising films of .beta.-C.sub.3 N.sub.4
    Patent number: 5652061
    Abstract: The present inventors have discovered how to make continuous films of single-phase crystalline .beta.-C.sub.3 N.sub.4 using microwave plasma chemical vapor transport. The films are hard, translucent nanocrystalline films useful for protecting a substrate.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: July 29, 1997
    Assignee: Lucent Technologies Inc.
    Inventors: Guang-kai David Jeng, James Winfield Mitchell