Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12264094 | Method for chromium removal from post-tanning wastewater | Liming Zhao, Bi Shi, Yuling TANG | 2025-04-01 |
| 12129524 | Chrome-free tanning process of ecological leather | Yanan Wang, Yue Yu, Bi Shi, Yunhang Zeng, Wenhua Zhang | 2024-10-29 |
| 11834724 | Light-colored polycarboxylated polysaccharide tanning agent, and preparation method and use thereof | Yue Yu, Yanan Wang, Bi Shi, Xueru Guo, Yunhang Zeng +2 more | 2023-12-05 |
| 11674007 | Modified collagen fiber, and preparation method and application | Shuangyang LI, Bi Shi, Weixing Xu | 2023-06-13 |