Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12304993 | Storage-stable polyisocyanate composition and preparation method | Zhicheng Zhu, Bin Shi, Chengyue YAN, Bing Zheng, Li Li +4 more | 2025-05-20 |
| 11059772 | Imine-type quaternary ammonium salt catalyst, preparation method thereof and use thereof for preparation of polyisocyanate composition | Yonghua Shang, Yuqi Wang, Bin Shi, Zhicheng Zhu, Hefu Li +2 more | 2021-07-13 |