- 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
|
143
|
102
|
38
|
29
|
34
|
27
|
23
|
15
|
15
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21107 |
513 |
| Schlumberger Technology Corporation | 11266 |
202 |
| Schlumberger Canada Limited | 7487 |
147 |
| Services Petroliers Schlumberger | 5921 |
138 |
| Baker Hughes Incorporated | 5131 |
132 |
| Schlumberger Technology B.v. | 5242 |
128 |
| Prad Research and Development Limited | 2685 |
78 |
| Schlumberger Holdings Limited | 2755 |
77 |
| Saudi Arabian Oil Company | 13839 |
31 |
| Baker Hughes, a GE Company, LLC | 2101 |
23 |
| ExxonMobil Upstream Research Company | 2359 |
15 |
| Landmark Graphics Corporation | 1510 |
14 |
| Chevron U.S.A. Inc. | 4040 |
14 |
| Smith International, Inc. | 706 |
9 |
| Geoquest Systems B.V. | 814 |
9 |
| Merlin Technology, Inc. | 164 |
9 |
| Baker Hughes Oilfield Operations, LLC | 2402 |
9 |
| Gyrodata, Incorporated | 86 |
8 |
| PetroChina Company Limited | 748 |
7 |
| Probe Technology Services, Inc. | 35 |
7 |
| Other owners | 208 |