- 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 10/54 - Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
Patent holdings for IPC class E21B 10/54
Total number of patents in this class: 395
10-year publication summary
|
40
|
54
|
66
|
56
|
60
|
20
|
11
|
15
|
5
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Baker Hughes Incorporated | 5689 |
79 |
| Halliburton Energy Services, Inc. | 20165 |
58 |
| Baker Hughes Holdings LLC | 3060 |
55 |
| Smith International, Inc. | 761 |
50 |
| Baker Hughes, a GE Company, LLC | 2171 |
32 |
| US Synthetic Corporation | 601 |
18 |
| Schlumberger Technology Corporation | 9690 |
12 |
| Diamond Innovations, Inc. | 241 |
9 |
| Baker Hughes Oilfield Operations, LLC | 1885 |
9 |
| Schlumberger Canada Limited | 6913 |
4 |
| Kondex Corporation | 83 |
3 |
| National Oilwell DHT, L.P. | 159 |
3 |
| NOV Downhole Eurasia Limited | 46 |
3 |
| Oerlikon Metco (US) Inc. | 202 |
3 |
| Ulterra Drilling Technologies, L.P. | 124 |
3 |
| Sandvik Mining and Construction Tools AB | 147 |
3 |
| Boart Longyear Company | 262 |
3 |
| Schlumberger Technology B.v. | 4951 |
2 |
| Element Six Abrasives S.A. | 148 |
2 |
| Element Six Limited | 86 |
2 |
| Other owners | 42 |