- 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: 776
10-year publication summary
|
53
|
51
|
44
|
36
|
23
|
21
|
18
|
18
|
8
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Baker Hughes Incorporated | 5033 |
119 |
| Smith International, Inc. | 700 |
95 |
| Baker Hughes Holdings LLC | 2994 |
90 |
| Halliburton Energy Services, Inc. | 21242 |
74 |
| US Synthetic Corporation | 619 |
74 |
| Schlumberger Technology Corporation | 11549 |
22 |
| Kennametal Inc. | 1359 |
16 |
| Mitsubishi Materials Corporation | 2465 |
12 |
| National Oilwell DHT, L.P. | 120 |
11 |
| National Oilwell Varco, L.P. | 1689 |
11 |
| Saudi Arabian Oil Company | 13949 |
11 |
| Varel International Ind., L.P. | 69 |
11 |
| Element Six Limited | 119 |
10 |
| Diamond Innovations, Inc. | 235 |
8 |
| Element Six Abrasives S.A. | 145 |
8 |
| Ulterra Drilling Technologies, L.P. | 131 |
7 |
| Sandvik Intellectual Property AB | 1412 |
6 |
| Sandvik Mining and Construction Tools AB | 188 |
6 |
| Schlumberger Canada Limited | 7571 |
5 |
| Element Six GmbH | 110 |
5 |
| Other owners | 175 |