- 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 10/46 - Drill bits characterised by wear resisting parts, e.g. diamond inserts
Patent holdings for IPC class E21B 10/46
Total number of patents in this class: 780
10-year publication summary
|
70
|
49
|
45
|
36
|
29
|
20
|
20
|
17
|
15
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Baker Hughes Incorporated | 5274 |
122 |
| Smith International, Inc. | 719 |
100 |
| Baker Hughes Holdings LLC | 3007 |
89 |
| US Synthetic Corporation | 622 |
75 |
| Halliburton Energy Services, Inc. | 20911 |
74 |
| Schlumberger Technology Corporation | 10780 |
22 |
| Kennametal Inc. | 1389 |
16 |
| Mitsubishi Materials Corporation | 2449 |
12 |
| National Oilwell DHT, L.P. | 129 |
11 |
| Saudi Arabian Oil Company | 13224 |
11 |
| Varel International Ind., L.P. | 69 |
11 |
| Element Six Limited | 120 |
10 |
| National Oilwell Varco, L.P. | 1682 |
10 |
| Diamond Innovations, Inc. | 235 |
9 |
| Element Six Abrasives S.A. | 147 |
8 |
| Sandvik Intellectual Property AB | 1482 |
7 |
| Ulterra Drilling Technologies, L.P. | 124 |
7 |
| Schlumberger Canada Limited | 7332 |
5 |
| Element Six GmbH | 105 |
5 |
| Element Six (production) (Pty) Ltd | 68 |
5 |
| Other owners | 171 |