- 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 17/22 - Rods or pipes with helical structure
Patent holdings for IPC class E21B 17/22
Total number of patents in this class: 195
10-year publication summary
|
22
|
14
|
16
|
11
|
14
|
11
|
14
|
14
|
8
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20835 |
17 |
| Robert Bosch GmbH | 42614 |
9 |
| Thru Tubing Solutions, Inc. | 376 |
8 |
| Black & Decker, Inc. | 2408 |
6 |
| Frank's International, LLC | 238 |
6 |
| Boart Longyear Manufacturing and Distribution Inc. | 112 |
6 |
| Hubbell Incorporated | 3247 |
5 |
| Schlumberger Technology Corporation | 10662 |
4 |
| Schlumberger Canada Limited | 7273 |
3 |
| Schlumberger Technology B.v. | 5161 |
3 |
| Baker Hughes Incorporated | 5277 |
3 |
| ANDREAS STIHL AG & Co. KG | 826 |
3 |
| Atlas Copco Industrial Technique AB | 472 |
3 |
| National Oilwell Varco, L.P. | 1661 |
3 |
| Postle Industries, Inc. | 50 |
3 |
| Services Petroliers Schlumberger | 5772 |
3 |
| Tercel IP Limited | 37 |
3 |
| Boart Longyear Company | 154 |
3 |
| Schlumberger Holdings Limited | 2835 |
2 |
| Hilti Aktiengesellschaft | 3489 |
2 |
| Other owners | 100 |