Issued Patents All Time
Showing 51–75 of 117 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11061161 | Stacked soft magnetic inserts and slotted shield designs for tilted coil antennas | Michael S. Bittar, Jin Ma | 2021-07-13 |
| 11035975 | Use of gap subs behind a coil antenna in electromagnetic induction tools | Paul Chin Ling Chang, Ilker R. Capoglu | 2021-06-15 |
| 11035981 | Air-hang calibration for resistivity-logging tool | Li-Te Pan, Yijing Fan | 2021-06-15 |
| 11029440 | Methods and systems with estimated synchronization between modular downhole logging system modules | Matthew Chase Griffing, Christopher Golla | 2021-06-08 |
| 11015432 | Relative azimuth correction for resistivity inversion | Li-Te Pan | 2021-05-25 |
| 11008836 | Optimization of excitation source placement for downhole telemetry operations | Burkay Donderici, Yijing Fan | 2021-05-18 |
| 10996368 | Preselecting initial guesses for multi-step inversion using electromagnetic measurements | Weixin Dong, Li-Te Pan | 2021-05-04 |
| 10968735 | Deviated production well telemetry with assisting well/drillship | Yijing Fan, Li-Te Pan | 2021-04-06 |
| 10962676 | Signal processing of a multi-sub rotational resistivity logging tool | Jin Ma | 2021-03-30 |
| 10928542 | Method of determining full green's tensor with resistivity measurement | Li-Te Pan, Yijing Fan | 2021-02-23 |
| 10788601 | Tunable dipole moment for formation measurements | Jin Ma, Joseph Keith Young | 2020-09-29 |
| 10781685 | Apparatus and method for aligning downhole measurements | Burkay Donderici | 2020-09-22 |
| 10782436 | Guidance system for ranging using unbalanced magnetic fields | Joseph D. Burke, Yijing Fan | 2020-09-22 |
| 10768336 | Formation logging using multicomponent signal-based measurement of anisotropic permittivity and resistivity | Wei-Bin Ewe, Burkay Donderici, Roland E. Chemali | 2020-09-08 |
| 10767466 | Active ranging-while-drilling with magnetic gradiometry | Glenn Andrew Wilson, Paul F. Rodney, Akram Ahmadi Kalateh Ahmad | 2020-09-08 |
| 10767467 | Well ranging apparatus, systems, and methods | — | 2020-09-08 |
| 10746011 | Electromagnetic ranging with azimuthal electromagnetic logging tool | Burkay Donderici | 2020-08-18 |
| 10711598 | Methods to synchronize signals among antennas with different clock systems | Matthew Chase Griffing, Christopher Golla | 2020-07-14 |
| 10677954 | Method and article for evaluating mud effect in imaging tool measurement | Luis Emilio San Martin | 2020-06-09 |
| 10677955 | Two part magnetic field gradient sensor calibration | Yumei Tang | 2020-06-09 |
| 10669836 | Surface excitation ranging methods and systems employing a ground well and a supplemental grounding arrangement | Akram Ahmadi Kalateh Ahmad | 2020-06-02 |
| 10663619 | Apparatus and methods to visualize formation related features | Baris Guner, Burkay Donderici | 2020-05-26 |
| 10655463 | Signal processing methods for steering to an underground target | Michael S. Bittar | 2020-05-19 |
| 10605072 | Well ranging apparatus, systems, and methods | Burkay Donderici | 2020-03-31 |
| 10605948 | Borehole imaging sensor assembly | Yumei Tang | 2020-03-31 |