GZ

Gongchun Zhang

CL Cmech (Guangzhou Industrial Ltd.): 3 patents #1 of 6Top 20%
Overall (All Time): #1,541,322 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8499815 Louver turning mechanism and hollow glass doors or windows with built-in magnetically controllable louver — 2013-08-06
8443488 Door closer capable of realizing self-control positioning — 2013-05-21
8419081 Side-hung door or window single latch lock — 2013-04-16