Top Inventors at Gradco All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Umehara Kenji | 4 |
| 2 | Seung-Kyoon Noh | 3 |
| 3 | Jae-Geol Choi | 2 |
| #4 | Jeong Ho Kim | 2 |
| #5 | Seung-gweon Lee | 2 |
| #6 | Frederick J. Lawrence | 1 |
| #7 | George M. Cross | 1 |
| #8 | Louis A. Rossi | 1 |
| #9 | Mark E. Spitler | 1 |
| #10 | Seong-Kyoon Noh | 1 |
| #11 | William D. Baker | 1 |
| #12 | Yeon-Kawan Chung | 1 |
| #13 | Yeon K. Jung | 1 |