- 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 43/17 - Interconnecting two or more wells by fracturing or otherwise attacking the formation
Patent holdings for IPC class E21B 43/17
Total number of patents in this class: 547
10-year publication summary
|
115
|
80
|
17
|
16
|
25
|
7
|
14
|
11
|
8
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21338 |
143 |
| Schlumberger Canada Limited | 7606 |
56 |
| Schlumberger Technology Corporation | 11818 |
53 |
| Services Petroliers Schlumberger | 6024 |
46 |
| Schlumberger Technology B.v. | 5298 |
36 |
| Baker Hughes Incorporated | 4934 |
14 |
| Landmark Graphics Corporation | 1508 |
13 |
| Baker Hughes, a GE Company, LLC | 2056 |
13 |
| Geoquest Systems B.V. | 872 |
10 |
| Chevron U.S.A. Inc. | 4140 |
9 |
| Saudi Arabian Oil Company | 14235 |
7 |
| Schlumberger Holdings Limited | 2699 |
6 |
| Foret Plasma Labs, LLC | 64 |
6 |
| Prad Research and Development Limited | 2661 |
6 |
| US Well Services LLC | 225 |
6 |
| Shell Internationale Research Maatschappij B.V. | 3403 |
5 |
| Shell Oil Company | 2071 |
5 |
| Statoil Gulf Services LLC | 21 |
5 |
| SunCor Energy Inc. | 734 |
5 |
| Mazama Energy Inc. | 26 |
5 |
| Other owners | 98 |