- All sections
- G - Physics
- G01V - Geophysics; gravitational measurements; detecting masses or objects; tags
- G01V 3/28 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device using induction coils
Patent holdings for IPC class G01V 3/28
Total number of patents in this class: 760
10-year publication summary
|
59
|
108
|
88
|
81
|
71
|
39
|
36
|
14
|
31
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20165 |
278 |
| Schlumberger Technology Corporation | 9690 |
87 |
| Baker Hughes Incorporated | 5689 |
47 |
| Saudi Arabian Oil Company | 11322 |
33 |
| Schlumberger Canada Limited | 6913 |
26 |
| Schlumberger Technology B.v. | 4951 |
25 |
| Services Petroliers Schlumberger | 5426 |
25 |
| Schlumberger Holdings Limited | 2947 |
22 |
| Prad Research and Development Limited | 2696 |
20 |
| Baker Hughes, a GE Company, LLC | 2171 |
18 |
| Well Resolutions Technology | 33 |
17 |
| Oliden Technology, LLC | 46 |
10 |
| Baker Hughes Holdings LLC | 3060 |
9 |
| Baker Hughes Oilfield Operations, LLC | 1885 |
7 |
| Hunting Titan, Inc. | 240 |
5 |
| Probe Technology Services, Inc. | 33 |
5 |
| Smith International, Inc. | 761 |
4 |
| Aramco Services Company | 3504 |
4 |
| China Petroleum & Chemical Corporation | 1623 |
4 |
| Vale S.A. | 262 |
4 |
| Other owners | 110 |