Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8047737 | Ring binder mechanism | Jn Biao Pi, Ze Yu Zhang | 2011-11-01 |
| 7950866 | Ring binder mechanism with polymeric housing | Jin Biao Pi, Ming Hua Huang | 2011-05-31 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8047737 | Ring binder mechanism | Jn Biao Pi, Ze Yu Zhang | 2011-11-01 |
| 7950866 | Ring binder mechanism with polymeric housing | Jin Biao Pi, Ming Hua Huang | 2011-05-31 |