- 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 10/22 - Roller bits characterised by bearing, lubrication or sealing details
Patent holdings for IPC class E21B 10/22
Total number of patents in this class: 179
10-year publication summary
|
15
|
14
|
15
|
9
|
8
|
6
|
6
|
2
|
8
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21284 |
24 |
| Baker Hughes Holdings LLC | 3011 |
24 |
| Baker Hughes Incorporated | 4897 |
20 |
| US Synthetic Corporation | 617 |
15 |
| Caterpillar Inc. | 10302 |
14 |
| Sandvik Intellectual Property AB | 1388 |
10 |
| Varel International Ind., L.P. | 69 |
9 |
| National Oilwell Varco, L.P. | 1700 |
5 |
| Baker Hughes, a GE Company, LLC | 2048 |
4 |
| Smith International, Inc. | 691 |
3 |
| Optionx Holdings Pty Ltd | 15 |
3 |
| Schlumberger Technology Corporation | 11924 |
2 |
| Element Six Limited | 118 |
2 |
| Honeywell Federal Manufacturing & Technologies, LLC | 348 |
2 |
| Kingdream Public Ltd. Co. | 7 |
2 |
| Quanta Associates, L.P. | 458 |
2 |
| Valqua, Ltd. | 301 |
2 |
| Sandvik Mining and Construction Tools AB | 200 |
2 |
| Syntex Super Materials, Inc. | 2 |
2 |
| PI Tech Innovations LLC | 16 |
2 |
| Other owners | 30 |