- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01L - Cyclically operating valves for machines or engines
- F01L 1/38 - Valve-gear or valve arrangements, e.g. lift-valve gear peculiar to machines or engines of specific type other than four-stroke cycle for engines with other than four-stroke cycle, e.g. with two-stroke cycle
Patent holdings for IPC class F01L 1/38
Total number of patents in this class: 27
10-year publication summary
|
5
|
5
|
7
|
2
|
2
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0
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2
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2
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3
|
0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BRP-Rotax GmbH & Co. KG | 186 |
3 |
| Robert Bosch GmbH | 43788 |
2 |
| Rolls-Royce PLC | 3188 |
2 |
| C.R.F. Societa Consortile per Azioni | 381 |
2 |
| Daimler Truck AG | 765 |
2 |
| Honda Motor Co., Ltd. | 25903 |
1 |
| Hyundai Motor Company | 24105 |
1 |
| Arctic Cat Inc. | 466 |
1 |
| Compressor Engineering Corporation | 7 |
1 |
| Cox Powertrain Ltd | 41 |
1 |
| Cummins Inc. | 2609 |
1 |
| General Atomics Aeronautical Systems, Inc. | 209 |
1 |
| Knob Engines s.r.o. | 6 |
1 |
| Eaton Intelligent Power Limited | 6201 |
1 |
| Hedman Ericsson Patent AB | 15 |
1 |
| Quest Engines, LLC | 31 |
1 |
| Czech Technical Univerzity in Prague, Faculty of Mechanical Engineering, Josef Božek Research Centre | 2 |
1 |
| Twostroke Motorcycle Company | 1 |
1 |
| Petroliam Nasional Berhad | 51 |
1 |
| Shanghai Universoon Autotech Co., Ltd. | 8 |
1 |
| Other owners | 1 |