Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10059632 | Humic acid composition and application thereof | Hongfa Li, Liangjin Guo, Yanjin Bi | 2018-08-28 |
| 10053816 | Method for continuously cooking grass raw materials and device | Hongfa Li, Songtao Chen, Qingtao Wang, Jixing Chu, Yingwen Dong | 2018-08-21 |
| 8778135 | Circular utilization method in pulping and papermaking processes with straw | Hongfa Li, Songtao Chen, Jihui Yang, Liangjin Guo | 2014-07-15 |
| 8771465 | Raw Paper | Hongfa Li, Jianmin Wang, Yanjin Bi, Jinxiang Xu, Zhongcheng He | 2014-07-08 |
| 8303772 | Method for preparing a grass-type unbleached paper product | Hongfa Li, Jihui Yang, Yanjin Bi, Jinxiang Xu | 2012-11-06 |