- 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: 915
10-year publication summary
|
58
|
43
|
27
|
26
|
25
|
34
|
28
|
22
|
12
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21257 |
128 |
| Schlumberger Technology Corporation | 11584 |
117 |
| Schlumberger Canada Limited | 7588 |
79 |
| Services Petroliers Schlumberger | 5996 |
74 |
| Baker Hughes Incorporated | 5018 |
68 |
| Schlumberger Technology B.v. | 5282 |
67 |
| Prad Research and Development Limited | 2678 |
56 |
| Schlumberger Holdings Limited | 2724 |
55 |
| Saudi Arabian Oil Company | 13956 |
21 |
| Baker Hughes Oilfield Operations, LLC | 2480 |
12 |
| Ideon Technologies Inc. | 34 |
11 |
| Saint-Gobain Ceramics & Plastics, Inc. | 804 |
10 |
| Aramco Services Company | 4162 |
8 |
| ExxonMobil Upstream Research Company | 2331 |
8 |
| Nabors Drilling Technologies USA, Inc. | 575 |
8 |
| Baker Hughes, a GE Company, LLC | 2091 |
7 |
| Chevron U.S.A. Inc. | 4117 |
6 |
| CBG Corporation | 17 |
6 |
| China Petroleum & Chemical Corporation | 2095 |
6 |
| Geoquest Systems B.V. | 856 |
6 |
| Other owners | 162 |