- 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 10/66 - Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe the cutting element being movable through the drilling pipe and laterally shiftable
Patent holdings for IPC class E21B 10/66
Total number of patents in this class: 25
10-year publication summary
|
2
|
2
|
1
|
1
|
0
|
0
|
2
|
1
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mincon Nordic Oy | 15 |
5 |
| Baker Hughes Incorporated | 4940 |
2 |
| Shell Internationale Research Maatschappij B.V. | 3409 |
2 |
| Schlumberger Technology Corporation | 11798 |
1 |
| Schlumberger Canada Limited | 7606 |
1 |
| Schlumberger Technology B.v. | 5298 |
1 |
| Schlumberger Holdings Limited | 2702 |
1 |
| Shell Oil Company | 2075 |
1 |
| JPMorgan Chase Bank, National Association | 8949 |
1 |
| Smith International, Inc. | 695 |
1 |
| Core Geotechnics Co., Ltd. | 5 |
1 |
| Dura Drilling, Inc. | 1 |
1 |
| Prad Research and Development Limited | 2662 |
1 |
| Services Petroliers Schlumberger | 6024 |
1 |
| Sinvent AS | 77 |
1 |
| WVC Mincon Inc. | 2 |
1 |
| Pirkan Laatupalvelu Oy | 11 |
1 |
| Intelligent Drilling Applications & Technology Pty Ltd | 4 |
1 |
| Nada Constuction | 1 |
1 |
| Other owners | 0 |