Issued Patents 2021
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11209565 | High precision acoustic logging processing for compressional and shear slowness | Ruijia Wang, Kristoffer Thomas Walker, Baichun Sun | 2021-12-28 |
| 11143777 | Quadruple transmitter and methods to determine wave velocities of a downhole formation | Jing Jin | 2021-10-12 |
| 11112519 | Automatic slowness-frequency range determination for advanced borehole sonic data processing | Ruijia Wang, John Philip Granville, Baichun Sun | 2021-09-07 |
| 10947838 | Echo velocity measurements without using recessed ultrasonic transceiver | Yu Weng, Peng Li, Ziyang LI, Rodney Allen Marlow | 2021-03-16 |