- 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 43/32 - Preventing gas- or water-coning phenomena, i.e. the formation of a conical column of gas or water around wells
Patent holdings for IPC class E21B 43/32
Total number of patents in this class: 148
10-year publication summary
|
6
|
4
|
10
|
14
|
9
|
12
|
4
|
7
|
0
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20749 |
21 |
| Saudi Arabian Oil Company | 12858 |
13 |
| Statoil Petroleum AS | 520 |
10 |
| Schlumberger Canada Limited | 7235 |
6 |
| Schlumberger Technology B.v. | 5148 |
6 |
| Schlumberger Holdings Limited | 2841 |
6 |
| Prad Research and Development Limited | 2694 |
6 |
| Services Petroliers Schlumberger | 5756 |
6 |
| Swellfix UK Limited | 53 |
5 |
| Schlumberger Technology Corporation | 10627 |
4 |
| Baker Hughes Incorporated | 5289 |
4 |
| Hydra Systems AS | 37 |
4 |
| InflowControl AS | 23 |
4 |
| Aramco Services Company | 3910 |
3 |
| Inflow Control AS | 3 |
3 |
| Limited Liability Company "gr Petroleum" | 12 |
3 |
| Limited Liability Company Oilmind | 5 |
3 |
| Thru Tubing Solutions, Inc. | 375 |
2 |
| Total SA | 495 |
2 |
| Baker Hughes, a GE Company, LLC | 2115 |
2 |
| Other owners | 35 |