YL

Yin-Feng Liu

AC A-Stainless International Co.: 4 patents #1 of 3Top 35%
Overall (All Time): #800,749 of 4,157,543Top 20%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
D1053688 Electric screwdriver 2024-12-10
D1041278 Mini electric screwdriver pen 2024-09-10
D845118 Screw 2019-04-09
D567644 Screw 2008-04-29
D557131 Screw 2007-12-11
D531491 Screw 2006-11-07