Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12422583 | Characterization system and method for casing loading using entropy analysis | Baoyan Li, Elan Yogeswaren, Dalila Balmaceda, Wei Han, Joseph Olaiya +2 more | 2025-09-23 |
| 12101594 | Acoustic transducers, methods of designing acoustic transducers, and methods of forming acoustic transducers | Aaron John Avagliano, Navin Sakthivel, Chad Eric Yates, Brian Steven Wieneke, Baskaran Ganesan +3 more | 2024-09-24 |
| 11726225 | Detection and evaluation of ultrasonic subsurface backscatter | Hermanus J. Nieuwoudt, Brian Moody, Andal Pierre | 2023-08-15 |
| 11726224 | B annulus acoustic pressure sensing | David S. Bishop, Carlos Rivero, James Joseph Freeman, Marc Samuelson, Shaela Rahman +1 more | 2023-08-15 |
| 11674377 | Contact or proximity pad mounted sensor system for imaging cavity defects and delamination defects between layers in multilayered cylindrical structures in subsurface wells | Elan Yogeswaren, Sandip Maity | 2023-06-13 |
| 11378709 | Through tubing acoustic imaging | Douglas J. Patterson | 2022-07-05 |
| 11168561 | Downhole position measurement using wireless transmitters and receivers | Lei Fang, Michael H. Johnson, Herb Dhuet | 2021-11-09 |
| 10602289 | Acoustic transducer with a liquid-filled porous medium backing and methods of making and using same | Rocco DiFoggio | 2020-03-24 |
| 10416330 | Composite transducer for downhole ultrasonic imaging and caliper measurement | Douglas J. Patterson, Charles E. Redding, Anjani R. Achanta | 2019-09-17 |
| 10408053 | Encapsulated phased array segment for downhole applications | Brian Breaux, James V. Leggett, III, Steffen Toscher | 2019-09-10 |
| 10222501 | Televiewer image wood-grain reduction techniques | Zhijuan Zhang, Douglas J. Patterson, Wei Han | 2019-03-05 |
| 9784874 | Multi-beam phased array acoustic transducer operation for downhole applications | James V. Leggett, III, Kamalesh Chatterjee, Vaibhav Sule, Jinsong Zhao | 2017-10-10 |
| 9726014 | Guided wave downhole fluid sensor | Ehsan Khajeh | 2017-08-08 |
| 9597709 | Variable thickness acoustic transducers | Ehsan Khajeh | 2017-03-21 |
| 9581708 | Guided acoustic waves isolation system for downhole applications | Ehsan Khajeh, Ryan Damont Green | 2017-02-28 |
| 9567846 | Devices and methods for downhole acoustic imaging | James V. Leggett, III, Wei Han, Kamalesh Chatterjee | 2017-02-14 |
| 8913461 | Televiewer image wood-grain reduction techniques | Jason M. Harris, Jinsong Zhao, Douglas J. Patterson, James B. Domnanish | 2014-12-16 |
| 8634272 | Televiewer image wood-grain reduction techniques | Jason M. Harris, Jinsong Zhao, Douglas J. Patterson, James B. Domnanish | 2014-01-21 |
| 8074712 | Stop collar friction clamping device | Shawn A. Olsen, James C. Hunziker | 2011-12-13 |
| 8074511 | Use of flexible member for borehole diameter measurement | Cornelis Huiszoon, Homero C. Castillo, Shawn A. Olsen, Gabriel Villasmil | 2011-12-13 |
| 7464588 | Apparatus and method for detecting fluid entering a wellbore | — | 2008-12-16 |
| 5541889 | Borehole fluid replacement means and method | John F. Priest, Mathew G. Schmidt, Paul G. Junghans | 1996-07-30 |
| 5146050 | Method and apparatus for acoustic formation dip logging | Bernard B. Strozeski, James O. Guy | 1992-09-08 |