- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F02B - Internal-combustion piston engines; combustion engines in general
- F02B 33/04 - Engines with reciprocating-piston pumps; Engines with crankcase pumps with simple crankcase pumps, i.e. with the rear face of a non-stepped working piston acting as sole pumping member in co-operation with the crankcase
Patent holdings for IPC class F02B 33/04
Total number of patents in this class: 108
10-year publication summary
|
8
|
9
|
6
|
15
|
12
|
9
|
7
|
3
|
7
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ANDREAS STIHL AG & Co. KG | 818 |
22 |
| Husqvarna AB | 2824 |
15 |
| Yamabiko Corporation | 234 |
10 |
| Quest Engines, LLC | 31 |
7 |
| EMAK S.p.A. | 58 |
4 |
| Honda Motor Co., Ltd. | 24537 |
3 |
| Makita Corporation | 2339 |
3 |
| Bombardier Recreational Products Inc. | 1262 |
3 |
| BRP-Rotax GmbH & Co. KG | 149 |
3 |
| KTM AG | 188 |
3 |
| Ford Global Technologies, LLC | 19702 |
2 |
| Arctic Cat Inc. | 338 |
2 |
| Husqvarna Zenoah Co., Ltd. | 85 |
2 |
| Polaris Industries Inc. | 1987 |
2 |
| Kawasaki Motors, Ltd. | 1040 |
2 |
| Robert Bosch GmbH | 40953 |
1 |
| Achates Power, Inc. | 206 |
1 |
| Atlas Copco Airpower, naamloze vennootschap | 915 |
1 |
| Atlas Copco Construction Tools AB | 13 |
1 |
| BRP US Inc. | 287 |
1 |
| Other owners | 20 |