- 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: 405
10-year publication summary
|
31
|
35
|
24
|
31
|
19
|
32
|
24
|
19
|
16
|
19
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21300 |
93 |
| Saudi Arabian Oil Company | 14416 |
22 |
| Schlumberger Technology Corporation | 12005 |
19 |
| Weatherford Technology Holdings, LLC | 2167 |
17 |
| Baker Hughes Oilfield Operations, LLC | 2560 |
12 |
| Impact Selector International, LLC | 28 |
7 |
| Thru Tubing Solutions, Inc. | 408 |
7 |
| Baker Hughes Incorporated | 4861 |
6 |
| Aramco Services Company | 4191 |
6 |
| Vertice Oil Tools Inc. | 96 |
6 |
| Enventure Global Technology, L.L.C. | 78 |
5 |
| Hunting Titan, Inc. | 230 |
5 |
| Intelligent Drilling Tools Limited | 9 |
5 |
| Welltec AS | 328 |
5 |
| Aker Subsea AS | 126 |
4 |
| G & H Diversified Manufacturing, LP, Edward Cannoy Kash, U.S. Citizen; Merry Janan Kash, U.S. Citizen | 85 |
4 |
| National Oilwell Varco, L.P. | 1698 |
4 |
| Statoil Petroleum AS | 466 |
4 |
| Tercel IP Limited | 37 |
4 |
| Baker Hughes Holdings LLC | 3018 |
4 |
| Other owners | 166 |