XL

Xingyan Li

Overall (2021): #98,659 of 548,734Top 20%
2
Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10940716 Escape device for self-rescue in case of auto tyre being trapped in pit — 2021-03-09
10913309 Portable escape device for self-rescue in case of auto tyre being trapped in pit — 2021-02-09