- All sections
- G - Physics
- G01V - Geophysics; gravitational measurements; detecting masses or objects; tags
- G01V 3/20 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with propagation of electric current
Patent holdings for IPC class G01V 3/20
Total number of patents in this class: 531
10-year publication summary
|
54
|
45
|
52
|
52
|
30
|
23
|
25
|
15
|
18
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20165 |
137 |
| Schlumberger Technology Corporation | 9690 |
62 |
| Baker Hughes Incorporated | 5689 |
55 |
| Schlumberger Canada Limited | 6913 |
27 |
| Saudi Arabian Oil Company | 11322 |
26 |
| Services Petroliers Schlumberger | 5426 |
25 |
| Schlumberger Technology B.v. | 4951 |
24 |
| Schlumberger Holdings Limited | 2947 |
20 |
| Prad Research and Development Limited | 2696 |
16 |
| Groundmetrics, Inc. | 38 |
12 |
| Baker Hughes, a GE Company, LLC | 2171 |
10 |
| Smith International, Inc. | 761 |
6 |
| Reeves Wireline Technologies Limited | 61 |
5 |
| Baker Hughes Oilfield Operations, LLC | 1885 |
5 |
| Applied Technologies Associates, Inc. | 12 |
4 |
| BGP Arabia Co., Ltd | 7 |
4 |
| Petrolink International Ltd. | 22 |
4 |
| Earthsystems Technologies, Inc. | 17 |
4 |
| Baker Hughes Holdings LLC | 3060 |
4 |
| Weatherford Technology Holdings, LLC | 2135 |
3 |
| Other owners | 78 |