- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01L - Cyclically operating valves for machines or engines
- F01L 3/20 - Shapes or constructions of valve members, not provided for in preceding subgroups of this group
Patent holdings for IPC class F01L 3/20
Total number of patents in this class: 187
10-year publication summary
|
22
|
17
|
15
|
11
|
20
|
18
|
13
|
8
|
5
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nittan Valve Co., Ltd. | 132 |
25 |
| Caterpillar Inc. | 9604 |
21 |
| MAHLE International GmbH | 2779 |
12 |
| Federal-Mogul Valvetrain GmbH | 63 |
10 |
| Mitsubishi Heavy Industries, Ltd. | 8777 |
7 |
| NITTAN Corporation | 53 |
6 |
| Yoshimura Company | 10 |
5 |
| Honda Motor Co., Ltd. | 25379 |
4 |
| Fuji Oozx Inc. | 23 |
4 |
| Jaguar Land Rover Limited | 4791 |
4 |
| Moto Tassinari, Inc. | 14 |
4 |
| Quest Engines, LLC | 31 |
4 |
| Marposs, S.p.A. | 140 |
3 |
| Cyclazoom LLC | 24 |
3 |
| Toyota Motor Corporation | 32681 |
2 |
| Eaton Corporation | 1815 |
2 |
| Ford Global Technologies, LLC | 20682 |
2 |
| Atlas Copco Compressors LLC | 17 |
2 |
| BRP-Rotax GmbH & Co. KG | 180 |
2 |
| MAN Diesel & Turbo, Filial af MAN Diesel & Turbo SE, Tyskland | 32 |
2 |
| Other owners | 63 |