Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12270296 | Cement evaluation | Qingtao Sun, Amit Padhi | 2025-04-08 |
| 12084959 | Estimating borehole shape between stationary survey locations | Umut Zalluhoglu, Wei Zhang | 2024-09-10 |
| 12012851 | Estimation of formation elastic constants from drilling data | — | 2024-06-18 |
| 11261721 | Techniques for evaluating borehole subsurface geologies using Stoneley waves | Brian E. Hornby | 2022-03-01 |
| 11237288 | Verifying measurements of elastic anisotropy parameters in an anisotropic wellbore environment | Brian E. Hornby, Ruijia Wang, Kristoffer Thomas Walker, Joonshik Kim, Baichun Sun | 2022-02-01 |
| 11174728 | Estimation of formation elastic constants from drilling | — | 2021-11-16 |
| 10989824 | Depth-dependent mud density determination and processing for horizontal shear slowness in vertical transverse isotropy environment using full-waveform sonic data | Brian E. Hornby | 2021-04-27 |
| 10901104 | Encoded driving pulses for a range finder | Philip William Tracadas, Paul Andrew Cooper, George Walter John Stevenson | 2021-01-26 |
| 10598563 | Downhole acoustic source localization | Yinghui Lu, Chung Chang, Srinivasan Jagannathan, Yibing Zheng, Avinash Vinayak Taware | 2020-03-24 |
| 10359530 | Acoustic anisotropy log visualization | — | 2019-07-23 |
| 10267941 | Estimate of formation mobility from Stoneley waveforms | Arthur Cheng | 2019-04-23 |
| 9995837 | Apparatus and methods of extracting reflections from acoustic array data | — | 2018-06-12 |
| 9772420 | Estimation of fast shear azimuth, methods and apparatus | — | 2017-09-26 |
| 9529105 | Acoustic logging systems and methods employing multi-mode inversion for anisotropy and shear slowness | Arthur Cheng | 2016-12-27 |
| 9513396 | Formation property determination apparatus, methods, and systems | Arthur Cheng | 2016-12-06 |
| 9348052 | Analytic estimation apparatus, methods, and systems | Arthur Cheng | 2016-05-24 |