- 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: 198
10-year publication summary
|
21
|
11
|
15
|
10
|
13
|
10
|
12
|
10
|
8
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20977 |
17 |
| Robert Bosch GmbH | 42826 |
9 |
| Thru Tubing Solutions, Inc. | 379 |
8 |
| Boart Longyear Manufacturing and Distribution Inc. | 110 |
7 |
| Black & Decker, Inc. | 2410 |
6 |
| Frank's International, LLC | 240 |
6 |
| Schlumberger Technology Corporation | 10914 |
5 |
| Hubbell Incorporated | 3316 |
5 |
| Schlumberger Canada Limited | 7373 |
3 |
| Schlumberger Technology B.v. | 5189 |
3 |
| Baker Hughes Incorporated | 5243 |
3 |
| ANDREAS STIHL AG & Co. KG | 828 |
3 |
| Atlas Copco Industrial Technique AB | 478 |
3 |
| National Oilwell Varco, L.P. | 1690 |
3 |
| Postle Industries, Inc. | 51 |
3 |
| Services Petroliers Schlumberger | 5835 |
3 |
| Tercel IP Limited | 37 |
3 |
| Schlumberger Holdings Limited | 2800 |
2 |
| Hilti Aktiengesellschaft | 3515 |
2 |
| Bauer Spezialtiefbau GmbH | 114 |
2 |
| Other owners | 102 |