- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F02B - Internal-combustion piston enginescombustion engines in general
- F02B 51/02 - Other methods of operating engines involving pre-treating of, or adding substances to, combustion air, fuel, or fuel-air mixture of the engines involving catalysts
Patent holdings for IPC class F02B 51/02
Total number of patents in this class: 46
10-year publication summary
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4
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4
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4
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7
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4
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3
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4
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3
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1
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1
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Brilliant Light Power, Inc. | 71 |
5 |
| Haldor Topsøe A/S | 629 |
5 |
| Caterpillar Inc. | 10331 |
3 |
| Precision Combustion, Inc. | 101 |
3 |
| Hydro-ject, LLC | 7 |
3 |
| Kabushiki Kaisha Toyota Jidoshokki | 1840 |
3 |
| Yanmar Power Technology Co., Ltd. | 580 |
2 |
| M2x Energy Inc. | 29 |
2 |
| ExxonMobil Research And Engineering Company | 2391 |
1 |
| Hitachi, Ltd. | 16221 |
1 |
| Denso Corporation | 25799 |
1 |
| Massachusetts Institute of Technology | 10313 |
1 |
| Toyota Industries Corporation | 1237 |
1 |
| The Board of Trustees of the University of Alabama | 440 |
1 |
| Cummins Inc. | 2659 |
1 |
| Federal-Mogul Powertrain LLC | 269 |
1 |
| Hydrogen Engine Center, Inc. | 3 |
1 |
| LiquidPiston, Inc. | 50 |
1 |
| McAlister Technologies, LLC | 125 |
1 |
| META Motoren-und Energie-Technik GmbH | 11 |
1 |
| Other owners | 8 |