- 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: 777
10-year publication summary
|
92
|
53
|
51
|
44
|
35
|
23
|
21
|
18
|
16
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Baker Hughes Incorporated | 5268 |
120 |
| Smith International, Inc. | 719 |
100 |
| Baker Hughes Holdings LLC | 3003 |
89 |
| US Synthetic Corporation | 624 |
75 |
| Halliburton Energy Services, Inc. | 20871 |
74 |
| Schlumberger Technology Corporation | 10691 |
21 |
| Kennametal Inc. | 1388 |
16 |
| Mitsubishi Materials Corporation | 2438 |
12 |
| National Oilwell DHT, L.P. | 130 |
11 |
| National Oilwell Varco, L.P. | 1668 |
11 |
| Saudi Arabian Oil Company | 13044 |
11 |
| Varel International Ind., L.P. | 69 |
11 |
| Element Six Limited | 119 |
10 |
| Diamond Innovations, Inc. | 235 |
9 |
| Element Six Abrasives S.A. | 147 |
8 |
| Sandvik Intellectual Property AB | 1484 |
7 |
| Ulterra Drilling Technologies, L.P. | 125 |
7 |
| Schlumberger Canada Limited | 7290 |
5 |
| Element Six GmbH | 105 |
5 |
| Element Six (production) (Pty) Ltd | 70 |
5 |
| Other owners | 170 |