- 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: 540
10-year publication summary
|
77
|
54
|
13
|
13
|
21
|
6
|
13
|
11
|
7
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21144 |
143 |
| Schlumberger Canada Limited | 7524 |
55 |
| Schlumberger Technology Corporation | 11349 |
51 |
| Services Petroliers Schlumberger | 5945 |
45 |
| Schlumberger Technology B.v. | 5259 |
35 |
| Baker Hughes Incorporated | 5088 |
14 |
| Landmark Graphics Corporation | 1509 |
13 |
| Baker Hughes, a GE Company, LLC | 2105 |
13 |
| Chevron U.S.A. Inc. | 4073 |
10 |
| Geoquest Systems B.V. | 823 |
10 |
| Schlumberger Holdings Limited | 2753 |
6 |
| Foret Plasma Labs, LLC | 66 |
6 |
| Prad Research and Development Limited | 2683 |
6 |
| Saudi Arabian Oil Company | 13904 |
6 |
| US Well Services LLC | 227 |
6 |
| Shell Internationale Research Maatschappij B.V. | 3497 |
5 |
| Shell Oil Company | 2113 |
5 |
| Statoil Gulf Services LLC | 21 |
5 |
| SunCor Energy Inc. | 745 |
5 |
| FMC Technologies, Inc. | 605 |
4 |
| Other owners | 97 |