Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10072463 | Anti-balling drill bit positioned relative to fixed blades presenting fixed cutting inserts | Xiao Jun Peng | 2018-09-11 |
| 7329153 | Audio output device | Chia-Huang Lin, Hai-Ju Sun, Wei Wang | 2008-02-12 |