- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01L - Cyclically operating valves for machines or engines
- F01L 3/22 - Valve seats not provided for in preceding subgroups of this groupFixing of valve seats
Patent holdings for IPC class F01L 3/22
Total number of patents in this class: 99
10-year publication summary
|
6
|
13
|
15
|
18
|
15
|
5
|
2
|
4
|
1
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Caterpillar Inc. | 10280 |
26 |
| Cummins Inc. | 2641 |
7 |
| AVL List GmbH | 1330 |
6 |
| Jaguar Land Rover Limited | 5120 |
4 |
| Eaton Corporation | 1803 |
3 |
| Daimler AG | 2811 |
3 |
| Wartsila Finland Oy | 754 |
3 |
| Innio Jenbacher GmbH & Co og | 306 |
3 |
| Mazda Motor Corporation | 3304 |
2 |
| Bleistahl-Produktions GmbH & Co KG. | 19 |
2 |
| MAHLE International GmbH | 2920 |
2 |
| MAN Diesel & Turbo, Filial af MAN Diesel & Turbo SE, Tyskland | 32 |
2 |
| MAN Truck & Bus AG | 169 |
2 |
| Nippon Piston Ring Co., Ltd. | 140 |
2 |
| Cyclazoom LLC | 24 |
2 |
| Everllence SE | 190 |
2 |
| Honda Motor Co., Ltd. | 26105 |
1 |
| GM Global Technology Operations LLC | 16188 |
1 |
| Ford Global Technologies, LLC | 21560 |
1 |
| ABB Turbo Systems AG | 78 |
1 |
| Other owners | 24 |