YS

Yi-Chieh Shih

BI Bi-Mirth: 8 patents #1 of 2Top 50%
Overall (All Time): #600,433 of 4,157,543Top 15%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
12276296 Self-drilling screw structure and manufacturing method thereof 2025-04-15
11713779 Fast chip removal reaming screw 2023-08-01
11598363 Low-wear screw structure 2023-03-07
11371547 Wood screw structure 2022-06-28
11371546 Self-drilling screw structure 2022-06-28
10480562 Self-tapping screw head structure 2019-11-19
9970470 Flooring screw 2018-05-15
9850935 Hole expanding screw 2017-12-26