- 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 17/046 - CouplingsJoints between rod and bit, or between rod and rod with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
Patent holdings for IPC class E21B 17/046
Total number of patents in this class: 589
10-year publication summary
|
52
|
63
|
67
|
46
|
44
|
49
|
40
|
33
|
28
|
27
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21284 |
80 |
| Weatherford Technology Holdings, LLC | 2165 |
34 |
| Baker Hughes Incorporated | 4897 |
19 |
| Vermeer Manufacturing Company | 676 |
17 |
| The Charles Machine Works, Inc. | 420 |
16 |
| Schlumberger Technology Corporation | 11924 |
15 |
| Pier Tech Systems, LLC | 34 |
13 |
| Tracto-Technik GmbH & Co. KG | 169 |
12 |
| Saudi Arabian Oil Company | 14349 |
11 |
| Optionx Holdings Pty Ltd | 15 |
10 |
| Thru Tubing Solutions, Inc. | 406 |
9 |
| TT Technologies, Inc. | 151 |
9 |
| Baker Hughes Oilfield Operations, LLC | 2556 |
9 |
| Schlumberger Canada Limited | 7621 |
8 |
| National Oilwell Varco, L.P. | 1700 |
8 |
| Fhe USA LLC | 41 |
8 |
| Vertice Oil Tools Inc. | 96 |
8 |
| Hilti Aktiengesellschaft | 3710 |
7 |
| Cameron International Corporation | 1367 |
7 |
| IFP Energies Nouvelles | 3112 |
7 |
| Other owners | 282 |