- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F02B - Internal-combustion piston enginescombustion engines in general
- F02B 25/22 - Means for reducing the mixing of charge and combustion residues or for preventing escape of fresh charge through outlet ports, not provided for in, or of interest apart from, groups by forming air cushion between charge and combustion residues
Patent holdings for IPC class F02B 25/22
Total number of patents in this class: 56
10-year publication summary
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5
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4
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3
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0
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2
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1
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2
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3
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0
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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
|
|---|---|---|
| Husqvarna AB | 2928 |
12 |
| Yamabiko Corporation | 268 |
10 |
| Husqvarna Zenoah Co., Ltd. | 74 |
7 |
| Makita Corporation | 2457 |
6 |
| ANDREAS STIHL AG & Co. KG | 823 |
5 |
| Zama Japan Kabushiki Kaisha | 22 |
2 |
| Nikko Tanaka Engineering Co., Ltd. | 2 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8783 |
1 |
| Husqvarna | 14 |
1 |
| Primavis S.r.l. | 2 |
1 |
| RENAULT s.a.s. | 5481 |
1 |
| Societe de Motorisations Aeronautiques | 12 |
1 |
| Zama Japan Co., Ltd. | 1 |
1 |
| Zenoah Co., Ltd. | 4 |
1 |
| Zhejiang Zomax Garden Machinery Co., Ltd. | 3 |
1 |
| Mitsubishi Heavy Industries Meiki Engines Co., Ltd. | 32 |
1 |
| Koki Holdings Co.,Ltd | 897 |
1 |
| FERIOZZI, Franco | 1 |
1 |
| MONTALBANO CARACCI, Vincenzo | 2 |
1 |
| Other owners | 0 |