Patents by Inventor Chi-Ho Chen

Chi-Ho Chen 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).

  • Mobile phone keypad design
    Publication number: 20070275771
    Abstract: A mobile phone keypad design includes a keypad and a joystick. The keypad includes multiple keys. The joystick is disposed between several neighboring keys in the keypad. When the joystick is tilted, a corresponding signal is output.
    Type: Application
    Filed: September 6, 2006
    Publication date: November 29, 2007
    Inventors: Shen-Yuan Lee, Wen-Huei Su, Chi-Ho Chen, Chien-Ming Hung, Mei-Jui Lin
  • Mobile phone
    Patent number: D545803
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: July 3, 2007
    Assignee: ASUSTeK Computer Inc.
    Inventor: Chi-Ho Chen