- 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: 1115
10-year publication summary
|
67
|
76
|
88
|
56
|
59
|
44
|
43
|
67
|
65
|
31
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21320 |
287 |
| Schlumberger Technology Corporation | 11820 |
150 |
| Schlumberger Canada Limited | 7601 |
78 |
| Services Petroliers Schlumberger | 6023 |
69 |
| Schlumberger Technology B.v. | 5295 |
67 |
| Saudi Arabian Oil Company | 14248 |
60 |
| Baker Hughes Incorporated | 4927 |
37 |
| Baker Hughes Oilfield Operations, LLC | 2532 |
26 |
| Schlumberger Holdings Limited | 2694 |
21 |
| Baker Hughes, a GE Company, LLC | 2054 |
20 |
| Prad Research and Development Limited | 2658 |
17 |
| Aramco Services Company | 4196 |
15 |
| Well Resolutions Technology | 41 |
15 |
| Oliden Technology, LLC | 46 |
12 |
| China National Petroleum Corporation | 637 |
9 |
| Baker Hughes Holdings LLC | 3021 |
9 |
| Chevron U.S.A. Inc. | 4136 |
8 |
| China Petroleum & Chemical Corporation | 2154 |
8 |
| Bench Tree Group, LLC | 67 |
7 |
| ExxonMobil Upstream Research Company | 2302 |
6 |
| Other owners | 194 |