Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12297320 | Polyethylene glycol derivative, preparation method thereof, and polyethylene glycol hydrogel capable of producing a rapid crosslinking reaction | Chaoliang He, Hui Ren, Xuesi Chen | 2025-05-13 |
| 12084402 | Preparation process of diazomethane | Hao Hong, Jiangping Lu, Enxuan Zhang, Wei Shen, Honglei Yan | 2024-09-10 |
| 7018815 | Method for producing vitamin B12 from hydrogen-metabolizing methane bacterium | Takaaki Maekawa | 2006-03-28 |
| 6972188 | Process for producing vitamin B12 from hydrogen-metabolizing methane bacterium | Takaaki Maekawa | 2005-12-06 |