Top Inventors at Dh Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Jong-Sang Noh | 5 |
| 2 | Jong Man Lee | 2 |
| 3 | Jung-Min Lee | 2 |
| #4 | Michael King | 2 |
| #5 | Myung-Sub Kum | 2 |
| #6 | Richard Clark | 2 |
| #7 | Serge Rivest | 2 |
| #8 | Byungju Kim | 1 |
| #9 | Donghwan Kim | 1 |
| #10 | Eul Ho Son | 1 |
| #11 | Hoo Sang Park | 1 |
| #12 | Jong-Geun Cha | 1 |
| #13 | Jonggeun Cha | 1 |
| #14 | Jongman Lee | 1 |
| #15 | Jongrae Lee | 1 |
| #16 | Jongsang Noh | 1 |
| #17 | Jung Yeol An | 1 |
| #18 | Jun Hong Park | 1 |
| #19 | Mo Se Kim | 1 |
| #20 | Noh Wan Park | 1 |
| #21 | Yong Ahm Choi | 1 |
| #22 | Yonghwan MO | 1 |