- 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
|
10
|
5
|
5
|
4
|
3
|
6
|
3
|
9
|
7
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20937 |
27 |
| Schlumberger Technology Corporation | 10848 |
14 |
| Schlumberger Canada Limited | 7357 |
8 |
| Schlumberger Technology B.v. | 5184 |
7 |
| Services Petroliers Schlumberger | 5823 |
7 |
| Schlumberger Holdings Limited | 2808 |
5 |
| Prad Research and Development Limited | 2692 |
5 |
| Smith International, Inc. | 719 |
4 |
| Thru Tubing Solutions, Inc. | 379 |
4 |
| Weatherford Technology Holdings, LLC | 2031 |
3 |
| China Petroleum & Chemical Corporation | 1907 |
3 |
| Shengli Drilling Technology Research Institute of Sinopec | 9 |
3 |
| ENI S.p.A. | 1273 |
2 |
| Greystone Technologies Pty Ltd | 10 |
2 |
| National Oilwell Varco, L.P. | 1683 |
2 |
| Obermeyer, Henry K. | 14 |
2 |
| Saudi Arabian Oil Company | 13316 |
2 |
| Ulterra Drilling Technologies, L.P. | 124 |
2 |
| Baker Hughes Oilfield Operations, LLC | 2319 |
2 |
| Baker Hughes, a GE Company, LLC | 2110 |
2 |
| Other owners | 29 |