YS

Yu-Min Su

TC Techway Industrial Co.: 5 patents #6 of 40Top 15%
Overall (All Time): #784,911 of 4,157,543Top 20%
6
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12352311 Structurally enhanced ball bearing 2025-07-08
D508387 Cordless electric ratchet wrench Chih-Hua Hsu, Chen-Chen Cheng 2005-08-16
6915721 Cordless ratchet wrench Chih-Hua Hsu, Chen-Chen Cheng 2005-07-12
D506375 Cordless electric ratchet wrench Chih-Hua Hsu, Chen-Chen Cheng 2005-06-21
6817424 Adjustable housing for a hand tool Chen-Chen Cheng 2004-11-16
D484382 Cordless screwdriver 2003-12-30