- 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
|
2
|
1
|
1
|
2
|
1
|
4
|
2
|
1
|
1
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cummins Inc. | 2369 |
3 |
| Federal-Mogul Valvetrain GmbH | 60 |
3 |
| Nittan Valve Co., Ltd. | 138 |
2 |
| Wartsila Finland Oy | 740 |
2 |
| Eaton Intelligent Power Limited | 6113 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
1 |
| Kool Kover LLC | 3 |
1 |
| MAN Diesel & Turbo, Filial af MAN Diesel & Turbo SE, Tyskland | 40 |
1 |
| Nippon Piston Ring Co., Ltd. | 131 |
1 |
| Pierburg GmbH | 435 |
1 |
| Pinnacle Engines, Inc. | 37 |
1 |
| NITTAN Corporation | 50 |
1 |
| Other owners | 0 |