- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F02F - Cylinders, pistons, or casings for combustion enginesarrangements of sealings in combustion engines
- F02F 3/22 - Pistons having cooling means the means being a fluid flowing through or along piston the fluid being liquid
Patent holdings for IPC class F02F 3/22
Total number of patents in this class: 391
10-year publication summary
|
69
|
45
|
29
|
18
|
13
|
12
|
12
|
11
|
7
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MAHLE International GmbH | 2874 |
111 |
| KS Kolbenschmidt GmbH | 141 |
48 |
| Federal-Mogul Powertrain LLC | 274 |
31 |
| Federal-Mogul Nurnberg GmbH | 131 |
24 |
| Cummins Inc. | 2585 |
14 |
| Federal-Mogul Corporation | 265 |
13 |
| Caterpillar Inc. | 10109 |
12 |
| Federal-Mogul LLC | 56 |
12 |
| General Atomics Aeronautical Systems, Inc. | 209 |
7 |
| Hitachi Automotive Systems, Ltd. | 3954 |
6 |
| Ford Global Technologies, LLC | 21246 |
5 |
| Dong Yang Piston Co., Ltd. | 28 |
5 |
| Honda Motor Co., Ltd. | 25852 |
4 |
| Daimler AG | 2906 |
4 |
| Achates Power, Inc. | 91 |
4 |
| Ohio State Innovation Foundation | 2298 |
4 |
| Tenneco Inc | 51 |
4 |
| Componenta Finland Oy | 5 |
3 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12532 |
3 |
| MAHLE Automotive Technologies (China) Co., Ltd. | 12 |
3 |
| Other owners | 74 |