Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12228027 | Universal bottomhole assembly node (UBHAN) | Tsili Wang | 2025-02-18 |
| 12078057 | Systems and apparatus for downhole communication | Tsili Wang | 2024-09-03 |
| 11725462 | Electrical wet connection between LWD/MWD tools with longitudinal and rotational degree of freedom and pressure protection eliminating vibration and shock effects | — | 2023-08-15 |
| 11466565 | Modular resistivity sensor for downhole measurement while drilling | Tsili Wang | 2022-10-11 |
| 11326437 | Universal bottomhole assembly node (UBHAN) providing communications to and from rotary steerable systems (RSS) and real time azimuthal resistivity imaging for geosteering and pressure while drilling (FWD) for well control | Tsili Wang | 2022-05-10 |
| 11098572 | Boundary tracking control module for rotary steerable systems | Tsili Wang | 2021-08-24 |
| 10648319 | Boundary tracking control module for rotary steerable systems | — | 2020-05-12 |
| 10337322 | Modular resistivity sensor for downhole measurement while drilling | Tsili Wang | 2019-07-02 |
| 10072490 | Boundary tracking control module for rotary steerable systems | Tsili Wang | 2018-09-11 |
| 9851465 | Apparatus and methods for communicating downhole data | Tsili Wang | 2017-12-26 |
| 9638819 | Modular resistivity sensor for downhole measurement while drilling | Tsili Wang | 2017-05-02 |
| 9273517 | Downhole closed-loop geosteering methodology | Tsili Wang, Rodney S. Guenther, Thanh H. Cao, Caimu Tang | 2016-03-01 |
| 8570045 | Drilling system for making LWD measurements ahead of the bit | Stephen D. Bonner, Ricki Don Marshall, Treston Greggory Davis | 2013-10-29 |
| 8171990 | In-situ formation strength testing with coring | James C. Hunziker, Quan V. Phan, Mohammed Azeemuddin, See H. Ong | 2012-05-08 |
| 8141419 | In-situ formation strength testing | Mohammed Azeemuddin, See H. Ong | 2012-03-27 |
| 7921913 | Vacuum insulated dewar flask | Paul G. Junghans | 2011-04-12 |
| 7762328 | Formation testing and sampling tool including a coring device | — | 2010-07-27 |
| 7716978 | High resolution capacitance high conductivity fluid sensor | Peter W. Reittinger, Francisco Galvan-Sanchez | 2010-05-18 |
| 7673704 | Variable positioning deep cutting rotary coring tool with expandable bit | Quan V. Phan | 2010-03-09 |
| 7649357 | Side entry leak protection for downhole tools | James C. Hunziker | 2010-01-19 |
| 7530407 | Rotary coring device and method for acquiring a sidewall core from an earth formation | Bahadur Sagoo, Quan V. Phan, David Ashcraft | 2009-05-12 |
| 7411388 | Rotary position sensor and method for determining a position of a rotating body | Bahadur Sagoo, Quan V. Phan | 2008-08-12 |
| 7373994 | Self cleaning coring bit | Roderick A. Larson, David Ashcraft | 2008-05-20 |
| 6937022 | Method and apparatus for a quadrupole transmitter for directionally sensitive induction tool | Gregory B. Itskovich, Alexander Bespalov | 2005-08-30 |
| 6903553 | Method and apparatus for a quadrupole transmitter for directionally sensitive induction tool | Gregory B. Itskovich, Alexander Bespalov | 2005-06-07 |