- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 432
10-year publication summary
|
51
|
51
|
69
|
75
|
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. | 12332 |
105 |
| Hitachi Automotive Systems, Ltd. | 3962 |
44 |
| Hitachi Astemo, Ltd. | 6050 |
28 |
| IHI Corporation | 3356 |
27 |
| Daimler AG | 3418 |
26 |
| Ford Global Technologies, LLC | 20057 |
15 |
| AVL List GmbH | 1254 |
13 |
| FEV GmbH | 80 |
13 |
| Toyota Motor Corporation | 30345 |
10 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13109 |
10 |
| GM Global Technology Operations LLC | 14197 |
9 |
| Honda Motor Co., Ltd. | 24865 |
8 |
| Hyundai Motor Company | 20403 |
7 |
| Gomecsys B.V. | 36 |
6 |
| Great Wall Motor Company Limited | 726 |
6 |
| RENAULT s.a.s. | 5390 |
6 |
| Audi AG | 7270 |
5 |
| Hilite Germany GmbH | 65 |
5 |
| iwis motorsysteme GmbH & Co. KG | 123 |
5 |
| Schaeffler Technologies AG & Co. KG | 9364 |
4 |
| Other owners | 80 |