- 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 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: 51
10-year publication summary
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4
|
4
|
5
|
4
|
6
|
4
|
5
|
3
|
1
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Smith International, Inc. | 761 |
9 |
| Baker Hughes Holdings LLC | 3060 |
7 |
| Halliburton Energy Services, Inc. | 20165 |
5 |
| National Oilwell DHT, L.P. | 159 |
3 |
| National Oilwell Varco, L.P. | 1604 |
3 |
| Kennametal Inc. | 1380 |
2 |
| Mincon International Limited | 52 |
2 |
| Mitsubishi Materials Corporation | 2378 |
2 |
| Saudi Arabian Oil Company | 11322 |
2 |
| US Synthetic Corporation | 601 |
2 |
| Schlumberger Technology Corporation | 9690 |
1 |
| Schlumberger Canada Limited | 6913 |
1 |
| Schlumberger Technology B.v. | 4951 |
1 |
| Baker Hughes Incorporated | 5689 |
1 |
| Century Products, Inc. | 21 |
1 |
| Cutting & Wear Resistant Developments Limited | 11 |
1 |
| Ramax, LLC | 4 |
1 |
| Services Petroliers Schlumberger | 5426 |
1 |
| Varel International Ind., L.P. | 73 |
1 |
| Baker Hughes, a GE Company, LLC | 2171 |
1 |
| Other owners | 4 |