- 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 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: 528
10-year publication summary
|
31
|
53
|
115
|
80
|
17
|
15
|
25
|
6
|
11
|
5
|
| 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 |
143 |
| Schlumberger Canada Limited | 6913 |
55 |
| Schlumberger Technology Corporation | 9690 |
51 |
| Services Petroliers Schlumberger | 5426 |
45 |
| Schlumberger Technology B.v. | 4951 |
35 |
| Baker Hughes Incorporated | 5689 |
15 |
| Landmark Graphics Corporation | 1526 |
13 |
| Baker Hughes, a GE Company, LLC | 2171 |
13 |
| Geoquest Systems B.V. | 584 |
10 |
| Chevron U.S.A. Inc. | 3774 |
9 |
| Schlumberger Holdings Limited | 2947 |
6 |
| Foret Plasma Labs, LLC | 85 |
6 |
| Prad Research and Development Limited | 2696 |
6 |
| Shell Internationale Research Maatschappij B.V. | 3792 |
5 |
| Shell Oil Company | 2196 |
5 |
| FMC Technologies, Inc. | 603 |
5 |
| Saudi Arabian Oil Company | 11322 |
5 |
| Statoil Gulf Services LLC | 24 |
5 |
| SunCor Energy Inc. | 838 |
5 |
| US Well Services LLC | 212 |
5 |
| Other owners | 86 |