- 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 23/08 - Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
Patent holdings for IPC class E21B 23/08
Total number of patents in this class: 439
10-year publication summary
|
36
|
20
|
36
|
35
|
21
|
25
|
15
|
17
|
14
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21320 |
88 |
| Schlumberger Technology Corporation | 11798 |
20 |
| Schlumberger Canada Limited | 7606 |
15 |
| Thru Tubing Solutions, Inc. | 404 |
15 |
| Schlumberger Technology B.v. | 5298 |
13 |
| Baker Hughes Incorporated | 4940 |
13 |
| Saudi Arabian Oil Company | 14207 |
13 |
| Services Petroliers Schlumberger | 6024 |
13 |
| Prad Research and Development Limited | 2662 |
12 |
| Schlumberger Holdings Limited | 2702 |
11 |
| Weatherford Technology Holdings, LLC | 2154 |
11 |
| Baker Hughes, a GE Company, LLC | 2057 |
10 |
| Baker Hughes Holdings LLC | 3023 |
8 |
| Aramco Services Company | 4188 |
6 |
| FMC Technologies, Inc. | 615 |
6 |
| Baker Hughes Oilfield Operations, LLC | 2521 |
6 |
| Insfor - Innovative Solutions for Robotics Ltda. - ME | 8 |
6 |
| Shell Internationale Research Maatschappij B.V. | 3409 |
5 |
| Shell Oil Company | 2075 |
5 |
| NCS Multistage Inc. | 171 |
5 |
| Other owners | 158 |