- 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 10/627 - Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements
Patent holdings for IPC class E21B 10/627
Total number of patents in this class: 53
10-year publication summary
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4
|
5
|
3
|
5
|
3
|
4
|
3
|
1
|
4
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Smith International, Inc. | 717 |
9 |
| Baker Hughes Holdings LLC | 2999 |
6 |
| Halliburton Energy Services, Inc. | 20964 |
5 |
| National Oilwell Varco, L.P. | 1689 |
4 |
| National Oilwell DHT, L.P. | 123 |
3 |
| Schlumberger Technology Corporation | 10898 |
2 |
| Kennametal Inc. | 1391 |
2 |
| Mitsubishi Materials Corporation | 2469 |
2 |
| Saudi Arabian Oil Company | 13409 |
2 |
| US Synthetic Corporation | 617 |
2 |
| Schlumberger Canada Limited | 7369 |
1 |
| Schlumberger Technology B.v. | 5184 |
1 |
| Baker Hughes Incorporated | 5246 |
1 |
| Century Products, Inc. | 20 |
1 |
| Commonwealth Scientific and Industrial Research Organisation | 1667 |
1 |
| Cutting & Wear Resistant Developments Limited | 11 |
1 |
| Mincon International Limited | 54 |
1 |
| Ramax, LLC | 2 |
1 |
| Services Petroliers Schlumberger | 5830 |
1 |
| Ulterra Drilling Technologies, L.P. | 124 |
1 |
| Other owners | 6 |