Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10059632 | Humic acid composition and application thereof | Hongfa Li, Mingxin Song, Yanjin Bi | 2018-08-28 |
| 8778135 | Circular utilization method in pulping and papermaking processes with straw | Hongfa Li, Mingxin Song, Songtao Chen, Jihui Yang | 2014-07-15 |