- 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: 416
10-year publication summary
|
55
|
69
|
46
|
29
|
20
|
13
|
12
|
12
|
11
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MAHLE International GmbH | 2743 |
119 |
| KS Kolbenschmidt GmbH | 157 |
52 |
| Tenneco Inc | 285 |
35 |
| Federal-Mogul Nurnberg GmbH | 136 |
25 |
| Cummins Inc. | 2551 |
13 |
| Federal-Mogul Corporation | 316 |
13 |
| Caterpillar Inc. | 9472 |
12 |
| Federal-Mogul LLC | 118 |
12 |
| Wilmington Trust, National Association, AS Co-collateral Trustee, Successor Collateral Trustee | 321 |
12 |
| Achates Power, Inc. | 205 |
11 |
| Hitachi Automotive Systems, Ltd. | 3958 |
6 |
| Ford Global Technologies, LLC | 20465 |
5 |
| Daimler AG | 3404 |
5 |
| Dong Yang Piston Co., Ltd. | 32 |
5 |
| Honda Motor Co., Ltd. | 25137 |
4 |
| Ohio State Innovation Foundation | 2103 |
4 |
| Componenta Finland Oy | 5 |
3 |
| Man Energy Solutions SE | 256 |
3 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12864 |
3 |
| MAHLE Automotive Technologies (China) Co., Ltd. | 11 |
3 |
| Other owners | 71 |