- 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 23/12 - Tool diverters
Patent holdings for IPC class E21B 23/12
Total number of patents in this class: 186
10-year publication summary
14
|
14
|
7
|
35
|
34
|
20
|
13
|
11
|
7
|
0
|
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 |
85 |
Saudi Arabian Oil Company | 11322 |
10 |
Baker Hughes, a GE Company, LLC | 2171 |
9 |
General Electric Company | 18133 |
8 |
Schlumberger Technology Corporation | 9690 |
8 |
Baker Hughes Incorporated | 5689 |
6 |
Enovate Systems Limited | 57 |
5 |
Aramco Services Company | 3504 |
4 |
Baker Hughes Holdings LLC | 3060 |
4 |
Schlumberger Canada Limited | 6913 |
3 |
Schlumberger Technology B.v. | 4951 |
3 |
Weatherford Technology Holdings, LLC | 2135 |
3 |
Reflex Instruments Asia Pacific Pty Ltd | 83 |
3 |
Services Petroliers Schlumberger | 5426 |
3 |
Gyrodata, Incorporated | 99 |
2 |
HydraWell Inc. | 6 |
2 |
Tier 1 Energy Solutions Inc. | 46 |
2 |
Oilfield Services LLC. | 2 |
2 |
Coretrax Americas Ltd. | 21 |
2 |
Schlumberger Holdings Limited | 2947 |
1 |
Other owners | 21 |