XL

Xi Lv

CC China Tobacco Yunnan Industrial Co.: 1 patents #23 of 62Top 40%
Overall (2021): #208,773 of 548,734Top 40%
1
Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11206867 Variable-frequency surface acoustic wave electronic cigarette Tinghua LI, Yulin Lei, Yi Han, Jun Wu, Yongkuan Chen +8 more 2021-12-28