Issued Patents 2023
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11662495 | Sonic through tubing cement evaluation | Chung Chang, Randolph S. Coles, Federico Combis Lucas | 2023-05-30 |
| 11662496 | Through tubing acoustic measurements | Brenno Caetano Troca Cabella, Ruijia Wang, Chung Chang, Yao Ge, Xiang Wu +3 more | 2023-05-30 |
| 11650346 | Downhole acoustic measurement | Chung Chang, Andrew Clair Colbert | 2023-05-16 |
| 11567228 | Acoustic dispersion curve identification based on reciprocal condition number | Jiajun Zhao, Ruijia Wang, Richard Timothy Coates | 2023-01-31 |