- Sections
- F - Mécaniqueéclairagechauffagearmementsautage
- F03B - "machines" ou machines motrices à liquides
- F03B 13/02 - Adaptations pour le forage des puits
Détention brevets de la classe F03B 13/02
Brevets de cette classe: 137
Historique des publications depuis 10 ans
|
6
|
7
|
5
|
4
|
9
|
4
|
11
|
9
|
9
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Propriétaires principaux
| Proprétaire |
Total
|
Cette classe
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21299 |
27 |
| Schlumberger Technology Corporation | 11961 |
13 |
| Schlumberger Canada Limited | 7616 |
8 |
| Schlumberger Technology B.v. | 5289 |
7 |
| Services Petroliers Schlumberger | 6024 |
7 |
| Schlumberger Holdings Limited | 2660 |
5 |
| Prad Research and Development Limited | 2642 |
5 |
| Smith International, Inc. | 684 |
4 |
| Thru Tubing Solutions, Inc. | 407 |
4 |
| Weatherford Technology Holdings, LLC | 2167 |
3 |
| China Petroleum & Chemical Corporation | 2185 |
3 |
| Obermeyer, Henry K. | 14 |
3 |
| Saudi Arabian Oil Company | 14390 |
3 |
| Shengli Drilling Technology Research Institute of Sinopec | 9 |
3 |
| ENI S.p.A. | 1316 |
2 |
| Greystone Technologies Pty Ltd | 10 |
2 |
| National Oilwell Varco, L.P. | 1701 |
2 |
| Baker Hughes Oilfield Operations, LLC | 2555 |
2 |
| Baker Hughes, a GE Company, LLC | 2022 |
2 |
| U-target Energy Ltd. | 6 |
2 |
| Autres propriétaires | 30 |