- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F15C - Fluid-circuit elements predominantly used for computing or control purposes
- F15C 3/02 - Circuit elements having moving parts using spool valves
Patent holdings for IPC class F15C 3/02
Total number of patents in this class: 40
10-year publication summary
|
3
|
1
|
3
|
1
|
4
|
3
|
4
|
1
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Volvo Construction Equipment AB | 1216 |
5 |
| The Boeing Company | 20094 |
2 |
| Allison Transmission, Inc. | 811 |
2 |
| Emerson Process Management Power & Water Solutions, Inc. | 116 |
2 |
| Gestion Josera Inc. | 3 |
2 |
| Placements Chic Inc. | 3 |
2 |
| Halliburton Energy Services, Inc. | 21230 |
1 |
| Deere & Company | 7963 |
1 |
| Pratt & Whitney Canada Corp. | 5232 |
1 |
| Robert Bosch GmbH | 43646 |
1 |
| Hamilton Sundstrand Corporation | 5019 |
1 |
| Toyota Industries Corporation | 1192 |
1 |
| Alamo Group Inc. | 209 |
1 |
| Amsted Rail - Faiveley, LLC. | 1 |
1 |
| Bell Helicopter Textron Inc. | 970 |
1 |
| Clark Equipment Company | 294 |
1 |
| Festo AG & Co. KG | 282 |
1 |
| Fisher Controls International LLC | 1484 |
1 |
| Goodrich Actuation Systems SAS | 183 |
1 |
| Messier-Bugatti-Dowty | 226 |
1 |
| Other owners | 11 |