- 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 23/12 - Tool diverters
Patent holdings for IPC class E21B 23/12
Total number of patents in this class: 204
10-year publication summary
|
14
|
7
|
24
|
27
|
17
|
15
|
10
|
10
|
5
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21006 |
94 |
| Saudi Arabian Oil Company | 13569 |
13 |
| Baker Hughes, a GE Company, LLC | 2107 |
9 |
| General Electric Company | 13859 |
8 |
| Schlumberger Technology Corporation | 10994 |
8 |
| Baker Hughes Incorporated | 5190 |
6 |
| Aramco Services Company | 4077 |
5 |
| Enovate Systems Limited | 50 |
5 |
| Baker Hughes Holdings LLC | 3006 |
4 |
| Schlumberger Canada Limited | 7410 |
3 |
| Schlumberger Technology B.v. | 5210 |
3 |
| Weatherford Technology Holdings, LLC | 2029 |
3 |
| Reflex Instruments Asia Pacific Pty Ltd | 87 |
3 |
| Services Petroliers Schlumberger | 5866 |
3 |
| Gyrodata, Incorporated | 87 |
2 |
| HydraWell Inc. | 6 |
2 |
| Tier 1 Energy Solutions Inc. | 67 |
2 |
| Baker Hughes Oilfield Operations, LLC | 2376 |
2 |
| Oilfield Services LLC. | 3 |
2 |
| Coretrax Americas Ltd. | 21 |
2 |
| Other owners | 25 |