Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10895661 | Determination of near wellbore properties using natural gamma rays | Dongwon Lee, Weijun Guo, Daniel F. Dorffer | 2021-01-19 |
| 10359374 | Identification of annulus materials using formation porosity | James E. Galford, Weijun Guo | 2019-07-23 |
| 10280738 | Determination of radiation tracer distribution using natural gamma rays | Weijun Guo | 2019-05-07 |