- 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
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21006 |
17 |
| Robert Bosch GmbH | 42984 |
9 |
| Thru Tubing Solutions, Inc. | 381 |
8 |
| Boart Longyear Manufacturing and Distribution Inc. | 108 |
7 |
| Black & Decker, Inc. | 2402 |
6 |
| Frank's International, LLC | 240 |
6 |
| Schlumberger Technology Corporation | 10994 |
5 |
| Hubbell Incorporated | 3337 |
5 |
| Schlumberger Canada Limited | 7410 |
3 |
| Schlumberger Technology B.v. | 5210 |
3 |
| Baker Hughes Incorporated | 5190 |
3 |
| ANDREAS STIHL AG & Co. KG | 830 |
3 |
| Atlas Copco Industrial Technique AB | 479 |
3 |
| National Oilwell Varco, L.P. | 1695 |
3 |
| Postle Industries, Inc. | 52 |
3 |
| Services Petroliers Schlumberger | 5866 |
3 |
| Tercel IP Limited | 37 |
3 |
| Schlumberger Holdings Limited | 2795 |
2 |
| Hilti Aktiengesellschaft | 3522 |
2 |
| Bauer Spezialtiefbau GmbH | 115 |
2 |
| Other owners | 102 |