Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11815478 | Through-tubing, cased-hole sealed material density evaluation using gamma ray measurements | Pablo Vieira Rego, Jeffrey James Crawford | 2023-11-14 |
| 11808136 | Through-tubing, cased-hole sealed material evaluation using acoustic measurements | Pablo Vieira Rego, Jeffrey James Crawford, Chung Chang | 2023-11-07 |
| 11662495 | Sonic through tubing cement evaluation | Chung Chang, Qingtao Sun, Federico Combis Lucas | 2023-05-30 |
| 11619106 | Tool brake | — | 2023-04-04 |
| 11254550 | Automatic wire spooling control | — | 2022-02-22 |
| 11118425 | Pumpdown regulator | Edward Harrigan, David R. Beard | 2021-09-14 |
| 10323508 | Apparatus and methods for monitoring the retrieval of a well tool | Sushovon Singha Roy, Batakrishna Mandal | 2019-06-18 |
| 9766372 | Calibration resistivity tools in environments with radio-frequency noise | — | 2017-09-19 |
| 9657540 | System and method for wireline tool pump-down operations | Dipesh P. Ashar | 2017-05-23 |
| 9410419 | Device for measuring and transmitting downhole tension | — | 2016-08-09 |
| 9217305 | Downhole tool string braking | Ed F Kopecky, Christian S. Mappus, Jonathan Paul Montiverdi, Neil Alan Ostermann, Budi P. Sidik | 2015-12-22 |
| 9187970 | Wellbore isolation devices and methods of use to prevent pump offs | Christian S. Mappus | 2015-11-17 |
| 9109415 | Automated diversion valve control for pump down operations | — | 2015-08-18 |
| 8875785 | System and method for correcting downhole speed | — | 2014-11-04 |