Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12281566 | Systems and methods for detecting downhole tool location inside a borehole | Zhanyu Ge, Yumei Tang, Gary D. Althoff | 2025-04-22 |
| 11746643 | Methods and apparatus for cement bond evaluation through production tubing | Jun Zhang | 2023-09-05 |
| 11091999 | Methods and apparatus for cement bond evaluation through production tubing | Jun Zhang | 2021-08-17 |
| 10969510 | Characterization of wellbore materials in multiple casing strings | Luis F. Quintero, Andrew D. Kirkwood | 2021-04-06 |
| 10712466 | Casing thickness measurement using acoustic wave correlation | Tianrun Chen, Tatiana Gilstrap, Arthur Cheng, Robert Eric Epstein | 2020-07-14 |
| 10634807 | Determining borehole parameters using ultrasonic and micro-resistivity calipers | Yumei Tang, Zhanyu Ge | 2020-04-28 |
| 10598563 | Downhole acoustic source localization | Yinghui Lu, Chung Chang, Mark Vincent Collins, Srinivasan Jagannathan, Avinash Vinayak Taware | 2020-03-24 |
| 10365389 | MEMS-based transducers on a downhole tool | Tatiana Gilstrap, Yinghui Lu, John Philip Granville, David Alan Welsh | 2019-07-30 |
| 10329899 | Borehole shape estimation | Taher Kortam, Clint K. Bates | 2019-06-25 |
| 10301932 | Ultrasonic casing and cement evaluation method using a ray tracing model | Tianrun Chen, Tatiana Gilstrap, Arthur Cheng, Robert Eric Epstein, Zhijuan Zhang | 2019-05-28 |
| 8004932 | Identification of stress in formations using angles of fast and slow dipole waves in borehole acoustic logging | Daniel Moos, Xiao Ming Tang, Vladimir Dubinsky, Douglas J. Patterson | 2011-08-23 |
| 7924652 | Method for determining seismic anisotropy | Xiao Ming Tang, Vladimir Dubinsky | 2011-04-12 |
| 7672784 | Using statistics of a fitting function for data-driven dispersion slowness processing | Xiao Ming Tang, Douglas J. Patterson | 2010-03-02 |
| 7626886 | P-wave anisotropy determination using borehole measurements | Vladimir Dubinsky, Xiao Ming Tang, Douglas J. Patterson | 2009-12-01 |
| 7492664 | Method for processing acoustic reflections in array data to image near-borehole geological structure | Xiao Ming Tang, Douglas J. Patterson | 2009-02-17 |