Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8875605 | Spiral cutting device | YUNG-CHANG TSENG | 2014-11-04 |
HW
HSI-CHANG WU
Overall (All Time): #3,132,751 of 4,157,543Top 80%
1
Patents All Time