- 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 17/046 - Couplings; Joints 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: 540
10-year publication summary
|
70
|
40
|
52
|
63
|
67
|
46
|
44
|
48
|
37
|
10
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20165 |
67 |
| Weatherford Technology Holdings, LLC | 2135 |
42 |
| Baker Hughes Incorporated | 5689 |
19 |
| The Charles Machine Works, Inc. | 411 |
17 |
| Tracto-Technik GmbH & Co. KG | 166 |
13 |
| Vermeer Manufacturing Company | 615 |
13 |
| Schlumberger Technology Corporation | 9690 |
12 |
| Schlumberger Canada Limited | 6913 |
9 |
| Thru Tubing Solutions, Inc. | 361 |
9 |
| National Oilwell Varco, L.P. | 1604 |
8 |
| Saudi Arabian Oil Company | 11322 |
8 |
| Baker Hughes Oilfield Operations, LLC | 1885 |
8 |
| Hilti Aktiengesellschaft | 3227 |
7 |
| Cameron International Corporation | 1305 |
7 |
| IFP Energies Nouvelles | 2717 |
7 |
| Pier Tech Systems, LLC | 20 |
7 |
| TT Technologies, Inc. | 145 |
7 |
| Vertice Oil Tools Inc. | 87 |
7 |
| Optionx Holdings Pty Ltd | 8 |
7 |
| Schlumberger Technology B.v. | 4951 |
6 |
| Other owners | 260 |