Issued Patents 2025
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12429415 | Microscopic and macroscopic evaluation method for dual-effect hydrate inhibitor | Zhiyuan Wang, Jihao Pei, Zhengfeng Shan, Longqiao Chen, Jianbo Zhang +1 more | 2025-09-30 |
| 12331602 | Well-killing system for ultra-deep well drilling with co-existence of overflow and lost circulation and operation method thereof | Bangtang Yin, Kai-Ten Feng, Zhiyuan Wang, Yonghai Gao, Hao Li +2 more | 2025-06-17 |