Top Inventors at Tong Yang Cement All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Dong Il Chun | 5 |
| 2 | Dong Su Lee | 5 |
| 3 | Dong Yeon Park | 5 |
| #4 | Eui-Joon Yoon | 5 |
| #5 | Hyun Jung Woo | 5 |
| #6 | Min-Hong Kim | 2 |
| #7 | Jo-Woong Ha | 1 |
| #8 | Suk-Kyu Chang | 1 |
| #9 | Sung-bum Cho | 1 |
| #10 | Tae Soon Park | 1 |
| #11 | Yong-Bum Shim | 1 |