- All sections
- E - Fixed constructions
- E21B - Earth or rock drillingobtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B 17/06 - Releasing-joints, e.g. safety joints
Patent holdings for IPC class E21B 17/06
Total number of patents in this class: 388
10-year publication summary
|
26
|
27
|
28
|
21
|
26
|
18
|
28
|
19
|
17
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20911 |
89 |
| Saudi Arabian Oil Company | 13224 |
21 |
| Schlumberger Technology Corporation | 10780 |
18 |
| Impact Selector International, LLC | 113 |
15 |
| Weatherford Technology Holdings, LLC | 2023 |
9 |
| Thru Tubing Solutions, Inc. | 379 |
7 |
| Baker Hughes Oilfield Operations, LLC | 2302 |
7 |
| Baker Hughes Incorporated | 5274 |
6 |
| Enventure Global Technology, L.L.C. | 89 |
6 |
| Aramco Services Company | 3987 |
6 |
| Hunting Titan, Inc. | 247 |
6 |
| Intelligent Drilling Tools Limited | 9 |
5 |
| Vertice Oil Tools Inc. | 94 |
5 |
| Aker Subsea AS | 129 |
4 |
| National Oilwell Varco, L.P. | 1682 |
4 |
| Statoil Petroleum AS | 524 |
4 |
| Tercel IP Limited | 37 |
4 |
| Welltec AS | 298 |
4 |
| Baker Hughes Holdings LLC | 3007 |
4 |
| Schlumberger Canada Limited | 7332 |
3 |
| Other owners | 161 |