- 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: 426
10-year publication summary
|
48
|
46
|
67
|
74
|
42
|
25
|
11
|
5
|
5
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nissan Motor Co., Ltd. | 12516 |
104 |
| Hitachi Automotive Systems, Ltd. | 3957 |
44 |
| Hitachi Astemo, Ltd. | 6385 |
28 |
| IHI Corporation | 3450 |
27 |
| Daimler AG | 3376 |
26 |
| Ford Global Technologies, LLC | 20646 |
15 |
| AVL List GmbH | 1299 |
13 |
| FEV GmbH | 80 |
13 |
| Toyota Motor Corporation | 32450 |
10 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12787 |
10 |
| GM Global Technology Operations LLC | 15095 |
9 |
| Honda Motor Co., Ltd. | 25327 |
7 |
| Hyundai Motor Company | 22086 |
7 |
| Gomecsys B.V. | 37 |
6 |
| Great Wall Motor Company Limited | 797 |
6 |
| RENAULT s.a.s. | 5466 |
6 |
| Audi AG | 7366 |
5 |
| Hilite Germany GmbH | 65 |
5 |
| iwis motorsysteme GmbH & Co. KG | 120 |
5 |
| Schaeffler Technologies AG & Co. KG | 9908 |
4 |
| Other owners | 76 |