- 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 7/08 - Special apparatus for deflecting the boring, e.g. special drill bits, knuckle joints, whipstocks
Patent holdings for IPC class E21B 7/08
Total number of patents in this class: 582
10-year publication summary
|
71
|
58
|
36
|
17
|
10
|
13
|
5
|
4
|
1
|
3
|
| 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 |
142 |
| Schlumberger Canada Limited | 6913 |
35 |
| Baker Hughes Incorporated | 5689 |
31 |
| Schlumberger Technology B.v. | 4951 |
29 |
| Services Petroliers Schlumberger | 5426 |
29 |
| Schlumberger Technology Corporation | 9690 |
28 |
| Schlumberger Holdings Limited | 2947 |
23 |
| Prad Research and Development Limited | 2696 |
19 |
| Baker Hughes Holdings LLC | 3060 |
14 |
| Smith International, Inc. | 761 |
13 |
| Vermeer Manufacturing Company | 615 |
11 |
| National Oilwell Varco, L.P. | 1604 |
9 |
| Weatherford Technology Holdings, LLC | 2135 |
8 |
| Wellbore Integrity Solutions LLC | 68 |
8 |
| Coiled Tubing Specialties, LLC | 31 |
7 |
| ConocoPhillips Company | 1657 |
6 |
| Petrojet Canada Inc. | 7 |
6 |
| Baker Hughes, a GE Company, LLC | 2171 |
5 |
| Turbo Drill Industries, Inc. | 57 |
4 |
| Future Tech Ltd | 7 |
4 |
| Other owners | 151 |