- 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: 24
10-year publication summary
|
2
|
2
|
5
|
2
|
4
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1
|
1
|
0
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0
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AI Alpine US Bidco Inc. | 102 |
3 |
| Fuji Oozx Inc. | 23 |
2 |
| Nittan Valve Co., Ltd. | 127 |
2 |
| Toyota Motor Corporation | 36327 |
1 |
| Ford Global Technologies, LLC | 21624 |
1 |
| Caterpillar Inc. | 10331 |
1 |
| Caterpillar Motoren GmbH & Co. KG | 130 |
1 |
| Cummins Inc. | 2659 |
1 |
| Dr. Ing. h.c. F. Porsche Aktiengesellschaft | 2825 |
1 |
| Freudenberg Sealing Technologies S.A.S. di Externa Italia S.r.l.u | 34 |
1 |
| Fuji Hollow Valve Inc. | 2 |
1 |
| MAHLE International GmbH | 2924 |
1 |
| MAHLE Metal Leve S/A | 156 |
1 |
| MAN Diesel & Turbo, Filial af MAN Diesel & Turbo SE, Tyskland | 32 |
1 |
| Ohio State Innovation Foundation | 2419 |
1 |
| Wartsila Finland Oy | 757 |
1 |
| Japan Engine Corporation | 74 |
1 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3304 |
1 |
| NITTAN Corporation | 56 |
1 |
| Everllence SE | 193 |
1 |
| Other owners | 0 |