- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F01L - Cyclically operating valves for machines or engines
- F01L 9/21 - Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by solenoids
Patent holdings for IPC class F01L 9/21
Total number of patents in this class: 22
10-year publication summary
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0
|
0
|
0
|
0
|
5
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12
|
3
|
2
|
1
|
0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eaton Intelligent Power Limited | 6296 |
5 |
| ETO Magnetic GmbH | 266 |
2 |
| Hedman Ericsson Patent AB | 15 |
2 |
| Denso Corporation | 23747 |
1 |
| Koninklijke Philips N.V. | 23971 |
1 |
| Hamilton Sundstrand Corporation | 4724 |
1 |
| Board of Regents, The University of Texas System | 5613 |
1 |
| Camcon Auto Limited | 17 |
1 |
| Florida State University Research Foundation, Inc. | 706 |
1 |
| G.W. Lisk Company, Inc. | 36 |
1 |
| MAHLE International GmbH | 2691 |
1 |
| SVM Schultz Verwaltungs-GmbH & Co. KG | 46 |
1 |
| ECO Holding 1 GmbH | 119 |
1 |
| Mmt AG | 22 |
1 |
| Cheesecake Energy Ltd. | 11 |
1 |
| MSG Mechatronic Systems GmbH | 5 |
1 |
| Other owners | 0 |