- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F02D - Controlling combustion engines
- F02D 15/02 - Varying compression ratio by alteration or displacement of piston stroke
Patent holdings for IPC class F02D 15/02
Total number of patents in this class: 411
10-year publication summary
|
51
|
69
|
75
|
42
|
25
|
11
|
5
|
5
|
3
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nissan Motor Co., Ltd. | 13028 |
100 |
| Hitachi Automotive Systems, Ltd. | 3954 |
44 |
| Hitachi Astemo, Ltd. | 6427 |
28 |
| IHI Corporation | 3539 |
27 |
| Daimler AG | 2802 |
26 |
| Ford Global Technologies, LLC | 21600 |
15 |
| AVL List GmbH | 1333 |
13 |
| FEV GmbH | 80 |
13 |
| Toyota Motor Corporation | 36092 |
10 |
| GM Global Technology Operations LLC | 16219 |
9 |
| Hyundai Motor Company | 24898 |
8 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12323 |
8 |
| Gomecsys B.V. | 39 |
6 |
| Great Wall Motor Company Limited | 908 |
6 |
| Audi AG | 7577 |
5 |
| Hilite Germany GmbH | 62 |
5 |
| iwis motorsysteme GmbH & Co. KG | 103 |
5 |
| Schaeffler Technologies AG & Co. KG | 11159 |
4 |
| Dr. Ing. h.c. F. Porsche Aktiengesellschaft | 2823 |
4 |
| Harmonic Drive Systems Inc. | 482 |
4 |
| Other owners | 71 |