- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F02D - Controlling combustion engines
- F02D 15/00 - Varying compression ratio
Patent holdings for IPC class F02D 15/00
Total number of patents in this class: 149
10-year publication summary
|
15
|
15
|
12
|
19
|
8
|
6
|
4
|
3
|
4
|
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. | 13014 |
14 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12353 |
14 |
| Ford Global Technologies, LLC | 21560 |
10 |
| Daimler AG | 2811 |
9 |
| Hitachi Automotive Systems, Ltd. | 3954 |
8 |
| Mazda Motor Corporation | 3304 |
6 |
| Pinnacle Engines, Inc. | 35 |
6 |
| Toyota Motor Corporation | 35927 |
5 |
| Denso Corporation | 25645 |
4 |
| Mce-5 Development | 36 |
4 |
| Hitachi Astemo, Ltd. | 6419 |
3 |
| The Regents of the University of California | 20815 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 9168 |
2 |
| Robert Bosch GmbH | 44254 |
2 |
| GM Global Technology Operations LLC | 16188 |
2 |
| Massachusetts Institute of Technology | 10282 |
2 |
| Chevron U.S.A. Inc. | 4159 |
2 |
| Audi AG | 7571 |
2 |
| AVL List GmbH | 1330 |
2 |
| FEV GmbH | 80 |
2 |
| Other owners | 48 |