- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F03B - Machines or engines for liquids
- F03B 13/02 - Adaptations for drilling wells
Patent holdings for IPC class F03B 13/02
Total number of patents in this class: 135
10-year publication summary
|
6
|
7
|
5
|
4
|
9
|
4
|
11
|
9
|
8
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21320 |
27 |
| Schlumberger Technology Corporation | 11798 |
13 |
| Schlumberger Canada Limited | 7606 |
8 |
| Schlumberger Technology B.v. | 5298 |
7 |
| Services Petroliers Schlumberger | 6024 |
7 |
| Schlumberger Holdings Limited | 2702 |
5 |
| Prad Research and Development Limited | 2662 |
5 |
| Smith International, Inc. | 695 |
4 |
| Thru Tubing Solutions, Inc. | 404 |
4 |
| Weatherford Technology Holdings, LLC | 2154 |
3 |
| China Petroleum & Chemical Corporation | 2147 |
3 |
| Obermeyer, Henry K. | 15 |
3 |
| Shengli Drilling Technology Research Institute of Sinopec | 9 |
3 |
| ENI S.p.A. | 1307 |
2 |
| Greystone Technologies Pty Ltd | 10 |
2 |
| National Oilwell Varco, L.P. | 1698 |
2 |
| Saudi Arabian Oil Company | 14207 |
2 |
| Baker Hughes Oilfield Operations, LLC | 2521 |
2 |
| Baker Hughes, a GE Company, LLC | 2057 |
2 |
| U-target Energy Ltd. | 6 |
2 |
| Other owners | 29 |