Issued Patents All Time
Showing 1–25 of 100 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12189080 | Data inversion to reduce motion effects on nuclear magnetic resonance relaxation data | Rebecca Corina Jachmann, Jie Yang, Songhua Chen | 2025-01-07 |
| 12153184 | Logging tool motion error reduction for nuclear magnetic resonance logging via pulse angle selection | — | 2024-11-26 |
| 11899158 | Logging tool motion error reduction for nuclear magnetic resonance logging via pulse sub-sequences | — | 2024-02-13 |
| 11815482 | Method and apparatus for high-throughput nuclear magnetic resonance measurements on borehole materials | — | 2023-11-14 |
| 11768311 | Efficient transmitter for nuclear magnetic resonance logging while drilling | Zbigniew Sobolewski | 2023-09-26 |
| 11686694 | Nuclear magnetic resonance systems and methods for characterization of borehole materials | — | 2023-06-27 |
| 11531135 | Method of imaging using azimuthally resolved NMR while drilling | Songhua Chen | 2022-12-20 |
| 11460420 | Apparatus and method for nuclear magnetic resonance measurements on borehole materials | — | 2022-10-04 |
| 11441414 | Downhole nuclear magnetic resonance (NMR) tool for one- dimensional NMR imaging | — | 2022-09-13 |
| 11422283 | Reducing motion effects on nuclear magnetic resonance relaxation data | Songhua Chen, Zinovy B. Krugliak | 2022-08-23 |
| 11415534 | Interspersing different wait times in trainlet and partial recovery sequences | Lilong Li, Yuesheng Cheng, David R. Beard, Songhua Chen | 2022-08-16 |
| 11150376 | NMR antenna arrangement for fast moving NMR logging tool | Songhua Chen, Lilong Li | 2021-10-19 |
| 11073634 | Constructing nuclear magnetic resonance (NMR) devices based on cost and structural constraints | — | 2021-07-27 |
| 11047815 | Method and apparatus for nuclear magnetic resonance measurements on borehole materials | — | 2021-06-29 |
| 10983242 | Nuclear magnetic resonance sensing and fluid sampling device for subterranean characterization | Lilong Li, Songhua Chen | 2021-04-20 |
| 10961848 | Unidirectional magnetization of nuclear magnetic resonance tools having soft magnetic core material | Lilong Li, Songhua Chen | 2021-03-30 |
| 10948440 | Borehole signal reduction for a side-looking NMR logging tool using a magnet assembly | Lilong Li, Rebecca Corina Jachmann | 2021-03-16 |
| 10895659 | Detecting nuclear magnetic resonance logging tool motion | Songhua Chen, Mark Cheiron Butler | 2021-01-19 |
| 10890684 | Downhole nuclear magnetic resonance sensor using anisotropic magnetic material | Lilong Li | 2021-01-12 |
| 10830039 | Downhole tri-axial induction electromagnetic tool | Steven A. Morris, Jonathan F. Hook, Stanislav W. Forgang, Sushant Dutta | 2020-11-10 |
| 10782445 | Logging-while-drilling tool with interleaved instruments | Songhua Chen, Lilong Li | 2020-09-22 |
| 10768334 | Nuclear magnetic resonance apparatus, systems, and methods | Rebecca Corina Jachmann, Lilong Li | 2020-09-08 |
| 10739490 | Dual zone nuclear magnetic resonance sensing device for subterranean characterization | Lilong Li, Songhua Chen | 2020-08-11 |
| 10725130 | Nuclear magnetic resonance sensing device for downhole measurements | Lilong Li, Songhua Chen | 2020-07-28 |
| 10663615 | Downhole nuclear magnetic resonance tool with active compensation for motional effects | — | 2020-05-26 |