Issued Patents All Time
Showing 1–25 of 65 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12163384 | Adaptive control of rotating or non-rotating transducer and sensors casing stand-off supported by casing centralizers | Otto N. Fanini, Gary Kainer, Gennady Koscheev, Marvin BATRES, Lesley Allison Fessler | 2024-12-10 |
| 11821301 | Preventing cement casing failures based on casing acoustic impedance | — | 2023-11-21 |
| 11352880 | Determining characteristics of a fluid in a wellbore | Paul F. Rodney, Mark W. Roberson, Vimal V. Shah, Scott Goodwin | 2022-06-07 |
| 11117166 | Ultrasonic transducers with piezoelectric material embedded in backing | Jing Jin, Yao Ge | 2021-09-14 |
| 10989047 | Systems and methods for sand flow detection and quantification | John Philip Granville, Atchyuta Ramayya Venna | 2021-04-27 |
| 10920569 | Acoustic method and apparatus for cement bond evaluation through tubing | — | 2021-02-16 |
| 10711593 | Locating a downhole tool in a wellbore | Li Gao, Krishna M. Ravi | 2020-07-14 |
| 10677048 | Downhole fluid detection using surface waves | Mark W. Roberson, Paul F. Rodney, Krishna M. Ravi, Scott Goodwin, Vimal V. Shah | 2020-06-09 |
| 10570734 | Determining characteristics of a fluid in a wellbore | Paul F. Rodney, Mark W. Roberson, Vimal V. Shah, Scott Goodwin | 2020-02-25 |
| 10502854 | Real-time adaptive minimum phase wavelet generation for downhole tools | Yinghui Lu | 2019-12-10 |
| 10439127 | Bender bar transducer having stacked encapsulated actuators | Michael Linley Fripp, Paul G. Junghans, Chen Li | 2019-10-08 |
| 10436020 | In-situ borehole fluid speed and attenuation measurement in an ultrasonic scanning tool | — | 2019-10-08 |
| 10408052 | Measuring frequency-dependent acoustic attenuation | Srinivasan Jagannathan | 2019-09-10 |
| 10379246 | Dynamic gain system with azimuthal averaging for downhole logging tools | Joni Polili Lie, Peng Li | 2019-08-13 |
| 10352152 | Acoustic calipering and analysis of annulus materials | — | 2019-07-16 |
| 10323508 | Apparatus and methods for monitoring the retrieval of a well tool | Randolph S. Coles, Sushovon Singha Roy | 2019-06-18 |
| 10280744 | Bender bar modal shaping | Michael Linley Fripp, Paul G. Junghans, Chen Li | 2019-05-07 |
| 10280733 | Methods for evaluating cement bonding | Srinivasan Jagannathan | 2019-05-07 |
| 10273797 | Casing and cement evaluation tool with reduced transmitter ringing | Peng Li, Zheng Chen | 2019-04-30 |
| 10241086 | Validation of cased-hole acoustic tools | Walmy Cuello Jimenez, Xueyu Pang, Paul Joseph Jones, Robert Eric Epstein, Zachary Edward Gordon +1 more | 2019-03-26 |
| 10209384 | Peak tracking and rejection in acoustic logs | Grant Philip Goodyear, Kristoffer Thomas Walker | 2019-02-19 |
| 10175375 | Method and system for direct slowness determination of dispersive waves in a wellbore environment | Pradip Kumar Mukhopadhyay | 2019-01-08 |
| 9869173 | Pulse generation for downhole logging | Peng Li, Boguslaw Wiecek, Zheng Chen | 2018-01-16 |
| 9753170 | Sourceless density determination apparatus, methods, and systems | Arthur Cheng, Nigel Mark Clegg, Jennifer Market | 2017-09-05 |
| 9732584 | Use of micro-electro-mechanical systems (MEMS) in well treatments | Craig W. Roddy, Rick L. Covington, Krishna M. Ravi, Michael S. Bittar, Clovis Bonavides +3 more | 2017-08-15 |