- All sections
- G - Physics
- G01V - Geophysicsgravitational measurementsdetecting masses or objectstags
- G01V 5/04 - Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
Patent holdings for IPC class G01V 5/04
Total number of patents in this class: 923
10-year publication summary
|
64
|
54
|
39
|
24
|
24
|
22
|
29
|
25
|
21
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21078 |
129 |
| Schlumberger Technology Corporation | 11054 |
119 |
| Schlumberger Canada Limited | 7432 |
80 |
| Services Petroliers Schlumberger | 5884 |
75 |
| Baker Hughes Incorporated | 5175 |
69 |
| Schlumberger Technology B.v. | 5223 |
68 |
| Schlumberger Holdings Limited | 2790 |
56 |
| Prad Research and Development Limited | 2687 |
56 |
| Saudi Arabian Oil Company | 13656 |
21 |
| Baker Hughes Oilfield Operations, LLC | 2390 |
12 |
| Saint-Gobain Ceramics & Plastics, Inc. | 823 |
10 |
| Ideon Technologies Inc. | 32 |
10 |
| ExxonMobil Upstream Research Company | 2379 |
9 |
| Aramco Services Company | 4095 |
8 |
| Nabors Drilling Technologies USA, Inc. | 564 |
8 |
| Baker Hughes, a GE Company, LLC | 2106 |
7 |
| Chevron U.S.A. Inc. | 4018 |
6 |
| CBG Corporation | 16 |
6 |
| China Petroleum & Chemical Corporation | 1950 |
6 |
| Geoquest Systems B.V. | 796 |
6 |
| Other owners | 162 |