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 | Chung Chang, Kristoffer Thomas Walker, Baichun Sun | 2021-12-28 |
| 11112519 | Automatic slowness-frequency range determination for advanced borehole sonic data processing | Chung Chang, John Philip Granville, Baichun Sun | 2021-09-07 |
| 11112526 | Waveform processing utilizing an amplitude adaptive data mask | — | 2021-09-07 |
| 10989832 | Pad alignment with a multi-frequency-band and multi-window semblance processing | Wei-Bin Ewe | 2021-04-27 |