Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12422583 | Characterization system and method for casing loading using entropy analysis | Baoyan Li, Elan Yogeswaren, Dalila Balmaceda, Roger R. Steinsiek, Joseph Olaiya +2 more | 2025-09-23 |
| 12359564 | Self-calibrated method of determining borehole fluid acoustic properties | Rocco DiFoggio, James V. Leggett, III | 2025-07-15 |
| 11822032 | Casing wall thickness detection from higher order shear-horizontal mode signals | Douglas J. Patterson | 2023-11-21 |
| 11460446 | Estimation of formation and/or downhole component properties using electromagnetic acoustic sensing | Sushant Dutta, Otto N. Fanini, Joseph Olaiya, Sandip Maity, Scott Ingram | 2022-10-04 |
| 11359488 | Self-calibrated method of determining borehole fluid acoustic properties | Rocco DiFoggio, James V. Leggett, III | 2022-06-14 |
| 11361004 | Efficient data relationship mining using machine learning | Markus Adam | 2022-06-14 |
| 10605944 | Formation acoustic property measurement with beam-angled transducer array | Jason M. Harris, Douglas J. Patterson, Stephen Dymmock, John Dahl | 2020-03-31 |
| 10465509 | Collocated multitone acoustic beam and electromagnetic flux leakage evaluation downhole | Xiaochu Yao, Otto N. Fanini, Mohamed Daoud | 2019-11-05 |
| 10317556 | Non-linear acoustic formation evaluation | Xiaochu Yao, Quming Zhou, Hao Zhang | 2019-06-11 |
| 10222501 | Televiewer image wood-grain reduction techniques | Zhijuan Zhang, Douglas J. Patterson, Roger R. Steinsiek | 2019-03-05 |
| 9702855 | Acoustic interface device | Rocco DiFoggio | 2017-07-11 |
| 9567846 | Devices and methods for downhole acoustic imaging | James V. Leggett, III, Roger R. Steinsiek, Kamalesh Chatterjee | 2017-02-14 |
| 9564606 | Assembly of vertically aligned nanotube arrays containing particles and application thereof | David Tomanek | 2017-02-07 |
| 9366133 | Acoustic standoff and mud velocity using a stepped transmitter | Rocco DiFoggio | 2016-06-14 |
| 9115568 | Reduction of tool mode and drilling noise in acoustic LWD | Jun Zhang, Paul Boonen | 2015-08-25 |
| 8117907 | Caliper logging using circumferentially spaced and/or angled transducer elements | Tsili Wang | 2012-02-21 |
| 7591343 | Apparatuses for generating acoustic waves | Robert Birchak, William Trainor, Thomas Ritter, Kwang Yoo, Diederik van Batenburg +1 more | 2009-09-22 |
| 7587936 | Apparatus and method for determining drilling fluid acoustic properties | — | 2009-09-15 |
| 7318471 | System and method for monitoring and removing blockage in a downhole oil and gas recovery operation | Paul F. Rodney, Jeroen Groenenboom, James R. Birchak, Denis P. Schmitt, Tim W. Geerits +1 more | 2008-01-15 |
| 7216738 | Acoustic stimulation method with axial driver actuating moment arms on tines | James R. Birchak, Thomas Ritter, Ali Mese, Diederik van Batenburg, William Trainor +7 more | 2007-05-15 |
| 7213681 | Acoustic stimulation tool with axial driver actuating moment arms on tines | James R. Birchak, Thomas Ritter, Ali Mese, Diederik van Batenburg, William Trainor +7 more | 2007-05-08 |
| 6938458 | Acoustic doppler downhole fluid flow measurement | Jean Michel Beique, James R. Birchak, Alan Hemphill, Tim Wiemers, Paul F. Rodney | 2005-09-06 |
| 6829947 | Acoustic Doppler downhole fluid flow measurement | Jean Michel Beique, James R. Birchak, Alan Hemphill, Tim Wiemers, Paul F. Rodney | 2004-12-14 |
| 6817229 | Acoustic sensor for fluid characterization | James R. Birchak, Bruce H. Storm, Jr., Thomas Ritter | 2004-11-16 |
| 6755079 | Method and apparatus for determining fluid viscosity | Mark A. Proett, Michael T. Pelletier, Bruce H. Storm, Jr., Roger L. Schultz, Thomas Ritter | 2004-06-29 |