Showing 401–402 of 402 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| #124 | Wanchun Zha | Yantai Jereh Petroleum Equipment & Technologies Co. | 1 |
| #124 | Lianpan Duan | Yantai Jereh Petroleum Equipment & Technologies Co. | 1 |
695 patents · 402 inventors
Ranked #443 of 44,143 cities Top 2%
Showing 401–402 of 402 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| #124 | Wanchun Zha | Yantai Jereh Petroleum Equipment & Technologies Co. | 1 |
| #124 | Lianpan Duan | Yantai Jereh Petroleum Equipment & Technologies Co. | 1 |