Top Inventors at Pha Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Duck Young Kim | 5 |
| 2 | Kwang Hun Hong | 4 |
| 3 | Byung Ju Kang | 2 |
| #4 | Jae Man Cho | 2 |
| #5 | Ki Dong Kim | 2 |
| #6 | Kyu-Bum Kim | 2 |
| #7 | Oh Sik Kwon | 2 |
| #8 | Seung Yup Lee | 2 |
| #9 | Doo Young Jung | 1 |
| #10 | Dong Hyun Kim | 1 |
| #11 | Seong Tae Hong | 1 |
| #12 | Seung Wan Kim | 1 |
| #13 | Yong-Ju Kim | 1 |