- 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 10/08 - Roller bits
Patent holdings for IPC class E21B 10/08
Total number of patents in this class: 210
10-year publication summary
|
40
|
24
|
9
|
16
|
9
|
6
|
6
|
5
|
4
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20944 |
33 |
| Smith International, Inc. | 719 |
30 |
| Baker Hughes Incorporated | 5251 |
24 |
| Baker Hughes Holdings LLC | 3001 |
22 |
| Schlumberger Technology Corporation | 10868 |
5 |
| Dynomax Drilling Tools Inc. | 18 |
5 |
| Varel International Ind., L.P. | 69 |
5 |
| Optionx Holdings Pty Ltd | 11 |
5 |
| Veracio Ltd. | 63 |
5 |
| Baker Hughes, a GE Company, LLC | 2111 |
4 |
| Sandvik Mining and Construction Tools AB | 172 |
4 |
| Boart Longyear Company | 159 |
4 |
| Palmieri S.p.A. | 9 |
3 |
| Sandvik Intellectual Property AB | 1476 |
3 |
| Saudi Arabian Oil Company | 13349 |
3 |
| Kennametal Inc. | 1389 |
2 |
| Quanta Associates, L.P. | 432 |
2 |
| Southwest Petroleum University | 476 |
2 |
| US Synthetic Corporation | 617 |
2 |
| Winroth Industri AB | 2 |
2 |
| Other owners | 45 |