Patents Assigned to Optrom (Hong Kong) International, Ltd.
  • Lamp tube
    Patent number: D611172
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: March 2, 2010
    Assignees: Optrom, Inc., Great Top Technology Co., Ltd., Optrom (Hong Kong) International, Ltd.
    Inventors: Yu-Chen Lin, Eric Tsai