- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F02F - Cylinders, pistons, or casings for combustion enginesarrangements of sealings in combustion engines
- F02F 3/14 - Pistons having surface coverings on piston heads within combustion chambers
Patent holdings for IPC class F02F 3/14
Total number of patents in this class: 89
10-year publication summary
|
17
|
15
|
10
|
10
|
1
|
3
|
5
|
1
|
2
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Federal-Mogul Powertrain LLC | 274 |
9 |
| Hitachi Automotive Systems, Ltd. | 3954 |
8 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12517 |
7 |
| MAHLE International GmbH | 2883 |
6 |
| Mazda Motor Corporation | 3271 |
5 |
| Toyota Motor Corporation | 34698 |
4 |
| Isuzu Motors Limited | 2307 |
4 |
| Nissan Motor Co., Ltd. | 12778 |
3 |
| NGK Insulators, Ltd. | 5206 |
3 |
| Federal-Mogul Nurnberg GmbH | 131 |
3 |
| Volvo Truck Corporation | 3808 |
3 |
| Tenneco Inc | 51 |
3 |
| Aisin Seiki Kabushiki Kaisha | 2177 |
2 |
| Akros Co., Ltd. | 16 |
2 |
| Cummins Inc. | 2601 |
2 |
| General Atomics Aeronautical Systems, Inc. | 210 |
2 |
| Kabushiki Kaisha Toyota Chuo Kenkyusho | 646 |
2 |
| KS Kolbenschmidt GmbH | 141 |
2 |
| Volkswagen AG | 7416 |
2 |
| GM Global Technology Operations LLC | 15848 |
1 |
| Other owners | 16 |