- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F01L - Cyclically operating valves for machines or engines
- F01L 3/18 - Liquid cooling of valve
Patent holdings for IPC class F01L 3/18
Total number of patents in this class: 19
10-year publication summary
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1
|
1
|
2
|
1
|
4
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2
|
1
|
1
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0
|
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
|
|---|---|---|
| Cummins Inc. | 2470 |
3 |
| Federal-Mogul Valvetrain GmbH | 63 |
3 |
| Nittan Valve Co., Ltd. | 134 |
2 |
| Wartsila Finland Oy | 740 |
2 |
| Eaton Intelligent Power Limited | 6296 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8531 |
1 |
| Kool Kover LLC | 2 |
1 |
| MAN Diesel & Turbo, Filial af MAN Diesel & Turbo SE, Tyskland | 39 |
1 |
| Nippon Piston Ring Co., Ltd. | 133 |
1 |
| Pierburg GmbH | 451 |
1 |
| Pinnacle Engines, Inc. | 37 |
1 |
| NITTAN Corporation | 52 |
1 |
| Other owners | 0 |