- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01L - Cyclically operating valves for machines or engines
- F01L 3/12 - Cooling of valves
Patent holdings for IPC class F01L 3/12
Total number of patents in this class: 23
10-year publication summary
|
6
|
2
|
2
|
5
|
2
|
4
|
1
|
1
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AI Alpine US Bidco Inc. | 103 |
3 |
| Fuji Oozx Inc. | 23 |
2 |
| Nittan Valve Co., Ltd. | 132 |
2 |
| Toyota Motor Corporation | 32231 |
1 |
| Ford Global Technologies, LLC | 20594 |
1 |
| Caterpillar Inc. | 9549 |
1 |
| Caterpillar Motoren GmbH & Co. KG | 130 |
1 |
| Cummins Inc. | 2585 |
1 |
| Dr. Ing. h.c. F. Porsche Aktiengesellschaft | 2739 |
1 |
| Freudenberg Sealing Technologies S.A.S. di Externa Italia S.r.l.u | 21 |
1 |
| Fuji Hollow Valve Inc. | 2 |
1 |
| MAHLE International GmbH | 2774 |
1 |
| MAN Diesel & Turbo, Filial af MAN Diesel & Turbo SE, Tyskland | 35 |
1 |
| Ohio State Innovation Foundation | 2138 |
1 |
| Wartsila Finland Oy | 741 |
1 |
| Japan Engine Corporation | 72 |
1 |
| Man Energy Solutions SE | 261 |
1 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3033 |
1 |
| NITTAN Corporation | 53 |
1 |
| Other owners | 0 |