Issued Patents 2019
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10459112 | Determining a characteristic of a material surrounding a wellbore based on count rates of scattered photons | Weijun Guo | 2019-10-29 |
| 10393917 | Cement evaluation with X-ray tomography | Weijun Guo | 2019-08-27 |
| 10288749 | Photon collimation apparatus, methods, and systems | Dongwon Lee, Weijun Guo | 2019-05-14 |
| 10281593 | Energy detection apparatus, methods, and systems | Weijun Guo | 2019-05-07 |
| 10209395 | Formation independent cement evaluation with active gamma ray detection | Weijun Guo | 2019-02-19 |