- 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 37/10 - Well swabs
Patent holdings for IPC class E21B 37/10
Total number of patents in this class: 54
10-year publication summary
|
3
|
6
|
4
|
5
|
11
|
6
|
2
|
2
|
4
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21230 |
9 |
| Saudi Arabian Oil Company | 13948 |
6 |
| Schlumberger Technology Corporation | 11522 |
4 |
| Thru Tubing Solutions, Inc. | 394 |
3 |
| ConocoPhillips Company | 1692 |
2 |
| Baker Hughes Oilfield Operations, LLC | 2464 |
2 |
| Schlumberger Canada Limited | 7564 |
1 |
| Schlumberger Technology B.v. | 5269 |
1 |
| Baker Hughes Incorporated | 5038 |
1 |
| ABB Inc. | 134 |
1 |
| Aramco Services Company | 4162 |
1 |
| Blue Spark Energy Inc. | 13 |
1 |
| China Petroleum & Chemical Corporation | 2064 |
1 |
| Coretrax Technology Limited | 4 |
1 |
| EOG Resources, Inc. | 87 |
1 |
| Frank's International, LLC | 237 |
1 |
| Longhorn Casing Tools Inc. | 7 |
1 |
| Oil & Gas Tech Enterprises C.V. | 4 |
1 |
| Rubberatkins Limited | 30 |
1 |
| Services Petroliers Schlumberger | 5979 |
1 |
| Other owners | 14 |