- 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 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: 433
10-year publication summary
|
55
|
31
|
36
|
20
|
36
|
35
|
21
|
24
|
10
|
2
|
| 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 |
87 |
| Schlumberger Technology Corporation | 9690 |
16 |
| Schlumberger Canada Limited | 6913 |
16 |
| Schlumberger Technology B.v. | 4951 |
14 |
| Services Petroliers Schlumberger | 5426 |
14 |
| Baker Hughes Incorporated | 5689 |
13 |
| Prad Research and Development Limited | 2696 |
13 |
| Saudi Arabian Oil Company | 11322 |
13 |
| Thru Tubing Solutions, Inc. | 361 |
13 |
| Schlumberger Holdings Limited | 2947 |
12 |
| Weatherford Technology Holdings, LLC | 2135 |
12 |
| Baker Hughes, a GE Company, LLC | 2171 |
10 |
| Baker Hughes Holdings LLC | 3060 |
9 |
| Shell Internationale Research Maatschappij B.V. | 3792 |
6 |
| Aramco Services Company | 3504 |
6 |
| Insfor - Innovative Solutions for Robotics Ltda. - ME | 8 |
6 |
| Shell Oil Company | 2196 |
5 |
| Tesco Corporation | 73 |
5 |
| Wells Fargo Bank, National Association | 2945 |
5 |
| Coretrax Global Limited | 36 |
5 |
| Other owners | 153 |