Patents by Inventor Barry Chin Li Cheung

Barry Chin Li Cheung 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).

  • Crystalline nanostructures
    Patent number: 8247070
    Abstract: The present invention comprises nano obelisks and nanostructures and methods and processes for same. The nano obelisks of the present invention are advantageous structures for use as electron source emitters. For example, the ultra sharp obelisks can be used as an emitter source to generate highly coherent and high energy electrons with high current.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: August 21, 2012
    Inventors: Barry Chin Li Cheung, Joseph Reese Brewer, Nirmalendu Deo
  • CRYSTALLINE NANOSTRUCTURES
    Publication number: 20100119825
    Abstract: The present invention comprises nano obelisks and nanostructures and methods and processes for same. The nano obelisks of the present invention are advantageous structures for use as electron source emitters. For example, the ultra sharp obelisks can be used as an emitter source to generate highly coherent and high energy electrons with high current.
    Type: Application
    Filed: October 30, 2007
    Publication date: May 13, 2010
    Inventors: Barry Chin Li Cheung, Joseph Reese Brewer, Nirmalendu Deo