- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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
2
|
6
|
2
|
2
|
5
|
2
|
4
|
1
|
1
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Nittan Valve Co., Ltd. | 138 |
3 |
AI Alpine US Bidco Inc. | 107 |
3 |
Fuji Oozx Inc. | 24 |
2 |
Toyota Motor Corporation | 28582 |
1 |
Ford Global Technologies, LLC | 19702 |
1 |
Caterpillar Inc. | 8877 |
1 |
Caterpillar Motoren GmbH & Co. KG | 127 |
1 |
Cummins Inc. | 2369 |
1 |
Dr. Ing. h.c. F. Porsche Aktiengesellschaft | 2487 |
1 |
Freudenberg Sealing Technologies S.A.S. di Externa Italia S.r.l.u | 19 |
1 |
Fuji Hollow Valve Inc. | 2 |
1 |
MAHLE International GmbH | 2670 |
1 |
MAN Diesel & Turbo, Filial af MAN Diesel & Turbo SE, Tyskland | 40 |
1 |
Ohio State Innovation Foundation | 1770 |
1 |
Wartsila Finland Oy | 740 |
1 |
Japan Engine Corporation | 72 |
1 |
Man Energy Solutions SE | 274 |
1 |
Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 2856 |
1 |
Other owners | 0 |