- All sections
- G - Physics
- G01V - Geophysicsgravitational measurementsdetecting masses or objectstags
- G01V 3/18 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging
Patent holdings for IPC class G01V 3/18
Total number of patents in this class: 1778
10-year publication summary
|
210
|
166
|
125
|
40
|
32
|
36
|
30
|
23
|
15
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20862 |
514 |
| Schlumberger Technology Corporation | 10673 |
206 |
| Schlumberger Canada Limited | 7283 |
147 |
| Baker Hughes Incorporated | 5273 |
137 |
| Services Petroliers Schlumberger | 5775 |
137 |
| Schlumberger Technology B.v. | 5164 |
128 |
| Prad Research and Development Limited | 2693 |
78 |
| Schlumberger Holdings Limited | 2834 |
77 |
| Saudi Arabian Oil Company | 12997 |
30 |
| Baker Hughes, a GE Company, LLC | 2113 |
23 |
| ExxonMobil Upstream Research Company | 2406 |
15 |
| Landmark Graphics Corporation | 1525 |
14 |
| Chevron U.S.A. Inc. | 3945 |
14 |
| Smith International, Inc. | 719 |
9 |
| Merlin Technology, Inc. | 161 |
9 |
| Baker Hughes Oilfield Operations, LLC | 2289 |
9 |
| Geoquest Systems B.V. | 736 |
8 |
| Gyrodata, Incorporated | 87 |
8 |
| Groundmetrics, Inc. | 31 |
7 |
| Probe Technology Services, Inc. | 36 |
7 |
| Other owners | 201 |