Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9796022 | Pollution-free method for recycling iron-based grinding waste | Shengen Zhang, Bo Liu, Jianjun Tian, Bin Li | 2017-10-24 |
| 9689055 | Complete non-cyanogens wet process for green recycling of waste printed circuit board | Shengen Zhang, Bin Li, Jianjun Tian, Bo Liu | 2017-06-27 |