- 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: 390
10-year publication summary
|
69
|
46
|
29
|
20
|
13
|
12
|
12
|
12
|
7
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MAHLE International GmbH | 2931 |
107 |
| KS Kolbenschmidt GmbH | 132 |
48 |
| Federal-Mogul Powertrain LLC | 269 |
31 |
| Federal-Mogul Nurnberg GmbH | 130 |
24 |
| Cummins Inc. | 2671 |
15 |
| Federal-Mogul Corporation | 231 |
13 |
| Federal-Mogul LLC | 52 |
12 |
| Caterpillar Inc. | 10364 |
11 |
| General Atomics Aeronautical Systems, Inc. | 214 |
7 |
| Hitachi Automotive Systems, Ltd. | 3954 |
6 |
| Ford Global Technologies, LLC | 21657 |
5 |
| Dong Yang Piston Co., Ltd. | 28 |
5 |
| Honda Motor Co., Ltd. | 26684 |
4 |
| Achates Power, Inc. | 90 |
4 |
| Ohio State Innovation Foundation | 2442 |
4 |
| Tenneco Inc | 51 |
4 |
| Daimler AG | 2788 |
3 |
| Componenta Finland Oy | 5 |
3 |
| Isuzu Motors Limited | 2339 |
3 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12295 |
3 |
| Other owners | 78 |