Patents by Inventor Charles E. Lesher

Charles E. Lesher 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).

  • Nanocrystalline alumina-diamond composites
    Patent number: 5728637
    Abstract: Alumina composites of unusually high hardness and toughness are formed by combining alumina and diamond in nanocrystalline form, followed by sintering at high pressure.
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: March 17, 1998
    Assignee: The Regents of the University of California
    Inventors: Rajiv S. Mishra, Amiya K. Mukherjee, Charles E. Lesher