CZ

Changshan Zhao

CC China Tobacco Yunnan Industrial Co.: 2 patents #64 of 163Top 40%
Overall (All Time): #1,891,134 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11160315 Compression charging device Ru Wang, Chengya Wang, Xu Zeng, Jingmei Han, Ping Lei +7 more 2021-11-02
10463073 Sliding cover-opening device Jianguo TANG, Xudong ZHENG, Xu Zeng, Ru Wang, Chengya Wang +9 more 2019-11-05