Patents by Inventor Johnson Chen

Johnson 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).

  • USB memory stick with pen
    Patent number: D502216
    Type: Grant
    Filed: June 12, 2004
    Date of Patent: February 22, 2005
    Assignee: Unitime International Co., Ltd.
    Inventor: Johnson Chen
  • Digital FM scan radio with alarm clock and pedometer
    Patent number: D502693
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: March 8, 2005
    Assignee: Unitime International Co., Ltd.
    Inventor: Johnson Chen
  • Motion display clock
    Patent number: D467185
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: December 17, 2002
    Assignee: Unitime International Co., Ltd.
    Inventor: Johnson Chen
  • Motion display clock
    Patent number: D467186
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: December 17, 2002
    Inventor: Johnson Chen
  • FM/AM radio
    Patent number: D468288
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: January 7, 2003
    Inventor: Johnson Chen
  • Radio
    Patent number: D477306
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: July 15, 2003
    Assignee: Unitime International Co., Ltd.
    Inventor: Johnson Chen
  • Motion display radio
    Patent number: D477585
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: July 22, 2003
    Assignee: Unitime International Co., Ltd.
    Inventor: Johnson Chen
  • Wobble radio
    Patent number: D479833
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: September 23, 2003
    Assignee: Unitime International Co., Ltd.
    Inventor: Johnson Chen
  • Digital alarm clock radio
    Patent number: D483346
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: December 9, 2003
    Inventor: Johnson Chen
  • Wobble alarm clock radio
    Patent number: D483347
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: December 9, 2003
    Assignee: Unitime International Co., Ltd.
    Inventor: Johnson Chen
  • AM/FM radio with siren and light
    Patent number: D486137
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: February 3, 2004
    Assignee: Unitime International Co., Ltd.
    Inventor: Johnson Chen
  • Digital FM auto scan radio with alarm clock
    Patent number: D486138
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: February 3, 2004
    Assignee: Unitime International Co., Ltd.
    Inventor: Johnson Chen
  • Digital FM auto scan radio with alarm clock
    Patent number: D486139
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: February 3, 2004
    Assignee: Unitime International Co., Ltd.
    Inventor: Johnson Chen
  • FM auto scan radio
    Patent number: D489706
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: May 11, 2004
    Inventor: Johnson Chen
  • Alarm clock radio
    Patent number: D495679
    Type: Grant
    Filed: December 29, 2003
    Date of Patent: September 7, 2004
    Inventor: Johnson Chen
  • Alarm clock radio
    Patent number: D495680
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: September 7, 2004
    Inventor: Johnson Chen
  • Alarm clock radio
    Patent number: D496022
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: September 14, 2004
    Inventor: Johnson Chen
  • Digital FM scan radio with alarm clock and pedometer
    Patent number: D496344
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: September 21, 2004
    Assignee: Unitime International Co., Ltd.
    Inventor: Johnson Chen
  • Light pen with stylus for PDA
    Patent number: D497179
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: October 12, 2004
    Inventor: Johnson Chen
  • Light pen
    Patent number: D497638
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: October 26, 2004
    Inventor: Johnson Chen