Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Qingfeng Yu | Amazon | 3 |
| 2 | Sheng-Yu Liu | Free-Free Industrial | 2 |
| 3 | Ning Feng | Yantai Jereh Petroleum Equipment & Technologies Co. | 1 |
Part of Massachusetts
6 patents · 3 inventors
Ranked #12,027 of 40,593 cities Top 30%
Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Qingfeng Yu | Amazon | 3 |
| 2 | Sheng-Yu Liu | Free-Free Industrial | 2 |
| 3 | Ning Feng | Yantai Jereh Petroleum Equipment & Technologies Co. | 1 |
Part of Massachusetts