国家/地区 中国（3）
IPC部 E（3）
IPC大类 E04（3）
IPC小类 E04B（3）
IPC
发明人 LI C（3）
公开年 2023（2）
申请年 2022（3）
专利权人

Rear-mounted aluminum alloy steel sleeve core composite glass curtain wall upright post system for use in building, has aluminum alloy upright post whose inner part is provided with locking mechanism for locating hot galvanizing steel square tube.

LIU G, YUE M, XUE X, XU J, WEN Y, LI C

Hidden low-voltage heating wall for use in building, has current carrying strip whose end is electrically connected with cable, where cable is connected with temperature measuring device, and free end of cable is provided with power transformer.

NIU H, WU X, LI C, HE Z, HOU L, LI G, WU H, GENG X

Composite sound-absorbing panel comprises multi-scale hole structure, and composite sound-absorbing material, where composite sound-absorbing material includes first-level holes.

LI D, WENG L, CAO H, LI C