Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11111782 | System and method for oilfield management | Xinhua Li, Haifeng Tian | 2021-09-07 |
| 10851646 | System and method for measuring an indicator diagram of a well | Xinhua Li, Haifeng Tian | 2020-12-01 |
| 10316651 | System and method for oilfield management | Xinhua Li, Haifeng Tian | 2019-06-11 |
| 6794332 | Highly selective shell impregnated catalyst of improved space time yield for production of vinyl acetate | Alla Khanmamedova, Robin J. Bates, Yuangen Ken Yin | 2004-09-21 |
| 6472683 | Semiconductor quantum oscillation device | — | 2002-10-29 |