YH

Ying Chi David Hong

A( Active Tools International (Hk): 4 patents #2 of 22Top 10%
Overall (All Time): #1,145,516 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11400667 Tire maintenance means — 2022-08-02
10975976 Safety valve — 2021-04-13
9050866 Sealant bottle for tire repair of gas pressure type — 2015-06-09
9021886 Pressure gauge — 2015-05-05