- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F02B - Internal-combustion piston enginescombustion engines in general
- F02B 25/20 - 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
Patent holdings for IPC class F02B 25/20
Total number of patents in this class: 38
10-year publication summary
|
4
|
1
|
5
|
3
|
3
|
1
|
1
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Yamabiko Corporation | 300 |
5 |
| Makita Corporation | 2518 |
4 |
| ANDREAS STIHL AG & Co. KG | 835 |
4 |
| Honda Motor Co., Ltd. | 25871 |
3 |
| BRP-Rotax GmbH & Co. KG | 182 |
3 |
| Newlenoir Limited | 21 |
3 |
| EMAK S.p.A. | 72 |
2 |
| Husqvarna Zenoah Co., Ltd. | 58 |
2 |
| Polaris Industries Inc. | 2265 |
2 |
| Grail Engine Technologies, Inc. | 1 |
1 |
| Hitachi Koki Co., Ltd. | 398 |
1 |
| Indian Institute of Science | 340 |
1 |
| Insitu, Inc. | 160 |
1 |
| Primavis S.r.l. | 2 |
1 |
| Societe de Motorisations Aeronautiques | 12 |
1 |
| Zhejiang Painier Technology Inc. | 7 |
1 |
| TVS Motor Company Limited | 827 |
1 |
| Nikko Tanaka Engineering Co., Ltd. | 2 |
1 |
| Cesar Mercier | 2 |
1 |
| Other owners | 0 |