Patents Assigned to Shenzhen Hongtiantai Industry Co., Ltd.
  • MP3 player
    Patent number: D555170
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: November 13, 2007
    Assignee: Shenzhen Hongtiantai Industry Co., Ltd.
    Inventor: Zewu Dai
  • MP3 player
    Patent number: D555171
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: November 13, 2007
    Assignee: Shenzhen Hongtiantai Industry Co., Ltd.
    Inventor: Zewu Dai
  • MP3 player
    Patent number: D563434
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: March 4, 2008
    Assignee: Shenzhen Hongtiantai Industry Co., Ltd.
    Inventor: Zewu Dai