JY

Jianghua Yan

A( Active Tools International (Hk): 1 patents #1 of 3Top 35%
Overall (2022): #402,232 of 548,613Top 75%
1
Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11292658 One-way valve, and tire repair sealant bottle having same Koon Fung Lam 2022-04-05