Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12203030 | Method for reducing pressure and increasing injection by continuous operation system of biological acid acidification and nano coating | Fan Zhang, Qing Feng, Xiaonan Li, Shengsheng Li | 2025-01-21 |
| 11879101 | Brevibacillus agri, preparation thereof, method for preparing surfactant and use thereof | Fan Zhang, Zhi Zhang, Puyong Yao, Fei Li, Hao Dong +8 more | 2024-01-23 |
| 11702582 | Biochemical viscosity reducer for heavy oil and preparation method thereof | Fan Zhang, Zhi Zhang, Puyong Yao, Fei Li, Hao Dong +8 more | 2023-07-18 |
| 9238842 | Method for detecting the genus of Bacillus in samples from oil reservoirs | Fan Zhang, Dujie Hou, Lujun Chai | 2016-01-19 |