- 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: 999
10-year publication summary
|
85
|
67
|
76
|
88
|
56
|
59
|
44
|
41
|
59
|
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. | 20449 |
245 |
| Schlumberger Technology Corporation | 10284 |
127 |
| Saudi Arabian Oil Company | 12481 |
63 |
| Schlumberger Canada Limited | 7161 |
60 |
| Schlumberger Technology B.v. | 5080 |
54 |
| Services Petroliers Schlumberger | 5639 |
54 |
| Baker Hughes Incorporated | 5500 |
41 |
| Schlumberger Holdings Limited | 2866 |
22 |
| Baker Hughes, a GE Company, LLC | 2138 |
20 |
| Baker Hughes Oilfield Operations, LLC | 2133 |
19 |
| Prad Research and Development Limited | 2696 |
17 |
| Aramco Services Company | 3763 |
14 |
| Well Resolutions Technology | 37 |
14 |
| Oliden Technology, LLC | 46 |
12 |
| China National Petroleum Corporation | 328 |
9 |
| Baker Hughes Holdings LLC | 3008 |
9 |
| Chevron U.S.A. Inc. | 3858 |
8 |
| Bench Tree Group, LLC | 66 |
7 |
| China Petroleum & Chemical Corporation | 1786 |
7 |
| ExxonMobil Upstream Research Company | 2454 |
7 |
| Other owners | 190 |