- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F02B - Internal-combustion piston enginescombustion engines in general
- F02B 9/04 - Methods of operating
Patent holdings for IPC class F02B 9/04
Total number of patents in this class: 18
10-year publication summary
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2
|
2
|
2
|
2
|
1
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5
|
4
|
1
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1
|
1
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tour Engine, Inc. | 18 |
3 |
| Tula Technology, Inc. | 347 |
3 |
| Toyota Motor Corporation | 33015 |
2 |
| GM Global Technology Operations LLC | 15192 |
2 |
| Mazda Motor Corporation | 3187 |
2 |
| ClearFlame Engines, Inc. | 30 |
2 |
| Denso Corporation | 24562 |
1 |
| Caterpillar Inc. | 9644 |
1 |
| Wisconsin Alumni Research Foundation | 3887 |
1 |
| Cummins Inc. | 2611 |
1 |
| Other owners | 0 |