- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01L - Cyclically operating valves for machines or engines
- F01L 3/14 - Cooling of valves by means of a liquid or solid coolant, e.g. sodium, in a closed chamber in a valve
Patent holdings for IPC class F01L 3/14
Total number of patents in this class: 118
10-year publication summary
|
14
|
11
|
12
|
14
|
12
|
9
|
4
|
1
|
4
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Federal-Mogul Valvetrain GmbH | 63 |
30 |
| Nittan Valve Co., Ltd. | 133 |
21 |
| MAHLE International GmbH | 2765 |
12 |
| NITTAN Corporation | 53 |
11 |
| Fuji Oozx Inc. | 23 |
10 |
| Mitsubishi Heavy Industries, Ltd. | 8703 |
9 |
| Yoshimura Company | 10 |
6 |
| Eaton Intelligent Power Limited | 5981 |
3 |
| Nissan Motor Co., Ltd. | 12453 |
2 |
| GM Global Technology Operations LLC | 15000 |
1 |
| Caterpillar Inc. | 9539 |
1 |
| Caterpillar Motoren GmbH & Co. KG | 130 |
1 |
| Fuji Hollow Valve Inc. | 2 |
1 |
| Grace Capital Partners, LLC | 4 |
1 |
| Hieta Technologies Limited | 26 |
1 |
| Nippon Piston Ring Co., Ltd. | 134 |
1 |
| Saint Jean Industries | 43 |
1 |
| Sukegawa Electric Co., Ltd. | 6 |
1 |
| AI Alpine US Bidco LLC | 65 |
1 |
| AI Alpine US Bidco Inc. | 103 |
1 |
| Other owners | 3 |