Issued Patents 2017
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9751356 | Ring binder mechanism | Jn Biao Pi | 2017-09-05 |
| 9688091 | Ring binder mechanism | Ho Ping Cheng, Jin Biao Pi | 2017-06-27 |
| 9656507 | Ring binder mechanism having snap-in ring members | — | 2017-05-23 |
| D783092 | Ring mechanism having elliptical cross sectional ring members | — | 2017-04-04 |