Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11439588 | Vaginal sustained-release drug delivery system for luteal support, method for preparation and use thereof | Meiying Ning, Liangyu Xia, Bin He | 2022-09-13 |
| 11313192 | Method for lowering oil pipe in gas well without well-killing, soluble bridge plug and material preparation method thereof | Xianwen Li, Qiaorong Han, Yanming Zhang, Zhanguo Ma, Yangming Hu +25 more | 2022-04-26 |