| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 |
| # | Industry | |
|---|---|---|
| #1 | Consumer goods | |
| #2 | Mechanical elements | |
| #3 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Filing and indexing | |
| #2 | Special books | |
| #3 | Office furniture | |
| #4 | Books | |
| #5 | Frames |
| # | Name | Total Patents |
|---|---|---|
| #1 | To Chun Yuen | 13 |
| #2 | Cheng Hung Yu | 3 |
| #3 | Cheng Ho Ping | 3 |
| #4 | Pi Jin Biao | 1 |
| #5 | Yang Yong | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2014086664A1 | Ring binder mechanism | |
| US2012155948A1 | Ring binder mechanism | |
| US2011299914A1 | Ring binder mechanism | |
| US2009110470A1 | Ring binder mechanism with polymeric housing and actuator | |
| US2009140119A1 | Support stand for notebook | |
| US2008008519A1 | Ring for ring binder mechanism |