- All sections
- G - Physics
- G01V - Geophysicsgravitational measurementsdetecting masses or objectstags
- G01V 3/28 - Electric or magnetic prospecting or detectingMeasuring 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: 759
10-year publication summary
|
108
|
88
|
81
|
71
|
39
|
35
|
15
|
33
|
12
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20649 |
281 |
| Schlumberger Technology Corporation | 10530 |
89 |
| Baker Hughes Incorporated | 5306 |
41 |
| Saudi Arabian Oil Company | 12711 |
33 |
| Schlumberger Canada Limited | 7163 |
25 |
| Schlumberger Technology B.v. | 5122 |
25 |
| Services Petroliers Schlumberger | 5715 |
25 |
| Schlumberger Holdings Limited | 2850 |
22 |
| Prad Research and Development Limited | 2695 |
20 |
| Baker Hughes, a GE Company, LLC | 2115 |
18 |
| Well Resolutions Technology | 37 |
17 |
| Oliden Technology, LLC | 46 |
10 |
| Baker Hughes Oilfield Operations, LLC | 2218 |
9 |
| Baker Hughes Holdings LLC | 3020 |
9 |
| Hunting Titan, Inc. | 244 |
5 |
| Probe Technology Services, Inc. | 34 |
5 |
| Smith International, Inc. | 726 |
4 |
| Aramco Services Company | 3885 |
4 |
| China Petroleum & Chemical Corporation | 1843 |
4 |
| Vale S.A. | 265 |
4 |
| Other owners | 109 |