- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F02B - Internal-combustion piston enginescombustion engines in general
- F02B 33/04 - Engines with reciprocating-piston pumpsEngines 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: 98
10-year publication summary
|
6
|
15
|
12
|
9
|
7
|
3
|
7
|
5
|
4
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ANDREAS STIHL AG & Co. KG | 857 |
15 |
| Husqvarna AB | 3045 |
15 |
| Yamabiko Corporation | 306 |
10 |
| Quest Engines, LLC | 31 |
7 |
| BRP-Rotax GmbH & Co. KG | 197 |
4 |
| EMAK S.p.A. | 72 |
4 |
| Honda Motor Co., Ltd. | 26594 |
3 |
| Makita Corporation | 2601 |
3 |
| Arctic Cat Inc. | 481 |
3 |
| Bombardier Recreational Products Inc. | 1536 |
3 |
| KTM AG | 197 |
3 |
| Ford Global Technologies, LLC | 21624 |
2 |
| Husqvarna Zenoah Co., Ltd. | 42 |
2 |
| Polaris Industries Inc. | 2319 |
2 |
| Robert Bosch GmbH | 44363 |
1 |
| Atlas Copco Airpower, naamloze vennootschap | 1083 |
1 |
| Atlas Copco Construction Tools AB | 7 |
1 |
| BRP US Inc. | 302 |
1 |
| DeltaHawk Engines, Inc. | 27 |
1 |
| E2f di Esposti Federici Ettore | 1 |
1 |
| Other owners | 16 |