- All sections
- E - Fixed constructions
- E21B - Earth or rock drilling; obtaining 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: 379
10-year publication summary
|
31
|
31
|
35
|
24
|
31
|
19
|
31
|
22
|
14
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20403 |
87 |
| Saudi Arabian Oil Company | 12390 |
19 |
| Schlumberger Technology Corporation | 10217 |
15 |
| Impact Selector International, LLC | 117 |
15 |
| Weatherford Technology Holdings, LLC | 2107 |
9 |
| Baker Hughes Incorporated | 5514 |
7 |
| Thru Tubing Solutions, Inc. | 364 |
7 |
| Enventure Global Technology, L.L.C. | 100 |
6 |
| Hunting Titan, Inc. | 244 |
6 |
| Baker Hughes Oilfield Operations, LLC | 2105 |
6 |
| Aramco Services Company | 3735 |
5 |
| Intelligent Drilling Tools Limited | 9 |
5 |
| Schlumberger Canada Limited | 7137 |
4 |
| Aker Subsea AS | 130 |
4 |
| FMC Kongsberg Subsea AS | 250 |
4 |
| National Oilwell Varco, L.P. | 1624 |
4 |
| Statoil Petroleum AS | 541 |
4 |
| Tercel IP Limited | 42 |
4 |
| Welltec AS | 297 |
4 |
| Vertice Oil Tools | 37 |
4 |
| Other owners | 160 |