- 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 10/22 - Roller bits - characterised by bearing, lubrication or sealing details
Patent holdings for IPC class E21B 10/22
Total number of patents in this class: 183
10-year publication summary
|
15
|
27
|
15
|
14
|
15
|
9
|
8
|
5
|
6
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Baker Hughes Incorporated | 5689 |
26 |
| Baker Hughes Holdings LLC | 3060 |
26 |
| Halliburton Energy Services, Inc. | 20165 |
24 |
| US Synthetic Corporation | 601 |
15 |
| Sandvik Intellectual Property AB | 1634 |
12 |
| Varel International Ind., L.P. | 73 |
9 |
| Caterpillar Inc. | 8877 |
5 |
| National Oilwell Varco, L.P. | 1604 |
5 |
| Smith International, Inc. | 761 |
4 |
| Baker Hughes, a GE Company, LLC | 2171 |
4 |
| Sandvik Mining and Construction Tools AB | 147 |
3 |
| Optionx Holdings Pty Ltd | 8 |
3 |
| Element Six Limited | 123 |
2 |
| Honeywell Federal Manufacturing & Technologies, LLC | 276 |
2 |
| Kingdream Public Ltd. Co. | 6 |
2 |
| PDB Tools, Inc. | 3 |
2 |
| Quanta Associates, L.P. | 435 |
2 |
| Valqua, Ltd. | 252 |
2 |
| Syntex Super Materials, Inc. | 2 |
2 |
| PI Tech Innovations LLC | 13 |
2 |
| Other owners | 31 |