- 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: 438
10-year publication summary
|
31
|
36
|
20
|
36
|
35
|
21
|
25
|
15
|
17
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20649 |
90 |
| Schlumberger Technology Corporation | 10530 |
18 |
| Schlumberger Canada Limited | 7163 |
16 |
| Schlumberger Technology B.v. | 5122 |
14 |
| Services Petroliers Schlumberger | 5715 |
14 |
| Baker Hughes Incorporated | 5306 |
13 |
| Prad Research and Development Limited | 2695 |
13 |
| Saudi Arabian Oil Company | 12711 |
13 |
| Thru Tubing Solutions, Inc. | 369 |
13 |
| Schlumberger Holdings Limited | 2850 |
12 |
| Weatherford Technology Holdings, LLC | 2011 |
10 |
| Baker Hughes, a GE Company, LLC | 2115 |
10 |
| Baker Hughes Holdings LLC | 3020 |
9 |
| Aramco Services Company | 3885 |
6 |
| Insfor - Innovative Solutions for Robotics Ltda. - ME | 8 |
6 |
| Shell Internationale Research Maatschappij B.V. | 3471 |
5 |
| Shell Oil Company | 2144 |
5 |
| FMC Technologies, Inc. | 594 |
5 |
| NCS Multistage Inc. | 175 |
5 |
| Tesco Corporation | 73 |
5 |
| Other owners | 156 |