- 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 10/06 - Roller core bits
Patent holdings for IPC class E21B 10/06
Total number of patents in this class: 11
10-year publication summary
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0
|
0
|
2
|
1
|
1
|
0
|
0
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0
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2
|
0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Drillterra Technologies Pty Ltd | 4 |
2 |
| Schlumberger Technology Corporation | 11798 |
1 |
| Baker Hughes Incorporated | 4940 |
1 |
| Smith International, Inc. | 695 |
1 |
| Atlas Copco Secoroc LLC | 18 |
1 |
| Bauer Maschinen GmbH | 244 |
1 |
| Century Products, Inc. | 4 |
1 |
| National Oilwell Varco, L.P. | 1698 |
1 |
| SKF USA Inc. | 34 |
1 |
| Baker Hughes Holdings LLC | 3023 |
1 |
| Other owners | 0 |