- All sections
- G - Physics
- G01V - Geophysicsgravitational measurementsdetecting masses or objectstags
- G01V 3/30 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with electromagnetic waves
Patent holdings for IPC class G01V 3/30
Total number of patents in this class: 1045
10-year publication summary
|
78
|
63
|
69
|
85
|
52
|
58
|
40
|
41
|
59
|
43
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20949 |
266 |
| Schlumberger Technology Corporation | 10820 |
139 |
| Schlumberger Canada Limited | 7350 |
66 |
| Services Petroliers Schlumberger | 5817 |
61 |
| Schlumberger Technology B.v. | 5181 |
60 |
| Saudi Arabian Oil Company | 13295 |
60 |
| Baker Hughes Incorporated | 5259 |
39 |
| Baker Hughes Oilfield Operations, LLC | 2308 |
23 |
| Schlumberger Holdings Limited | 2813 |
21 |
| Baker Hughes, a GE Company, LLC | 2110 |
20 |
| Prad Research and Development Limited | 2692 |
17 |
| Aramco Services Company | 4002 |
15 |
| Well Resolutions Technology | 38 |
14 |
| Oliden Technology, LLC | 46 |
12 |
| China National Petroleum Corporation | 452 |
9 |
| Baker Hughes Holdings LLC | 3003 |
9 |
| Chevron U.S.A. Inc. | 3972 |
8 |
| Bench Tree Group, LLC | 63 |
7 |
| China Petroleum & Chemical Corporation | 1905 |
7 |
| ExxonMobil Upstream Research Company | 2395 |
7 |
| Other owners | 185 |