Patents by Inventor Ka Yeung Cheung

Ka Yeung 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).

  • Communication handset including keypad
    Patent number: D428402
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: July 18, 2000
    Assignee: Neopoint, Inc.
    Inventors: William Y. Son, Seung Bum Yi, Ka Yeung Cheung
  • Communication handset
    Patent number: D434740
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: December 5, 2000
    Assignee: Neopoint, Inc.
    Inventors: William Y. Son, Seung Bum Yi, Ka Yeung Cheung