Top Inventors at Est Group All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Alex Kotlyar | 6 |
| 2 | Danko Kobziar | 4 |
| 3 | Andrew Hall | 4 |
| #4 | Henry Brandenberger | 2 |
| #5 | James P. Berneski, Jr. | 2 |
| #6 | Eugene E. Cunningham | 1 |
| #7 | Jae Hoon Choi | 1 |
| #8 | Jae Hun Hong | 1 |
| #9 | Jae Rim Yi | 1 |
| #10 | Jae Kyeong Yoo | 1 |
| #11 | Jim Berneski | 1 |
| #12 | Jung-Jae Kim | 1 |
| #13 | Karen Sarkissian | 1 |
| #14 | Michael Hvorecny | 1 |
| #15 | Robert Adams | 1 |
| #16 | Sang Youp HWANG | 1 |
| #17 | Sang-bock Lee | 1 |
| #18 | Shunichi Tahara | 1 |
| #19 | Sung Hun Hong | 1 |
| #20 | Sung Eun Jeoung | 1 |
| #21 | Sung-Soo Lee | 1 |
| #22 | Takashi Tsuchiya | 1 |
| #23 | Yasushi Takahashi | 1 |