Patents Assigned to GL World Tech C&S Ltd. Co.
  • Automatically closed fire protection louver device
    Patent number: 8881455
    Abstract: The present invention provides an automatically closed fire protection louver device, which is installed on a window or the like in an apartment building without a balcony function or in a curtain wall type building structure to adjust natural lighting and automatically block spread of flames to an upper floor without using electrical energy when a fire breaks out.
    Type: Grant
    Filed: October 10, 2011
    Date of Patent: November 11, 2014
    Assignee: GL World Tech C&S Ltd. Co.
    Inventors: Yoo Sun Ro, Young Gon Ro