Top Inventors at Perm Instruments All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Serguei I. Krioutchkov | 5 |
| 2 | Apostolos Kantzas | 5 |
| 3 | Zheng Yin Wang | 3 |
| #4 | Zhengyin Wang | 2 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Serguei I. Krioutchkov | 5 |
| 2 | Apostolos Kantzas | 5 |
| 3 | Zheng Yin Wang | 3 |
| #4 | Zhengyin Wang | 2 |