Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8587184 | Tuning fork quartz crystal resonator including concave of continous curved surface on base | Chien-Cheng Yang, Hung-Peng Lee | 2013-11-19 |
| 8569938 | Tuning fork quartz crystal resonator including recess on base | Chien-Cheng Yang, Hung-Peng Lee | 2013-10-29 |
| 8400049 | Tuning fork quartz crystal resonator | Chien-Cheng Yang, Hung-Peng Lee | 2013-03-19 |