Patents Assigned to Topco Energy Saving System Corp.
  • Light emitting diode lamp
    Patent number: D623774
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: September 14, 2010
    Assignee: Topco Energy Saving System Corp.
    Inventor: Wen-Kuei Tsai
  • Light emitting diode lamp
    Patent number: D624669
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: September 28, 2010
    Assignee: Topco Energy Saving System Corp.
    Inventor: Wen-Kuei Tsai