- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 26
10-year publication summary
|
4
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5
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5
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7
|
2
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2
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0
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2
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2
|
0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BRP-Rotax GmbH & Co. KG | 166 |
3 |
| Robert Bosch GmbH | 41765 |
2 |
| Rolls-Royce PLC | 2988 |
2 |
| Daimler Truck AG | 634 |
2 |
| Honda Motor Co., Ltd. | 24868 |
1 |
| Hyundai Motor Company | 20442 |
1 |
| Achates Power, Inc. | 208 |
1 |
| Arctic Cat Inc. | 389 |
1 |
| Compressor Engineering Corporation | 7 |
1 |
| Cox Powertrain Ltd | 53 |
1 |
| C.R.F. Societa Consortile per Azioni | 384 |
1 |
| Cummins Inc. | 2470 |
1 |
| Knob Engines s.r.o. | 7 |
1 |
| Eaton Intelligent Power Limited | 6296 |
1 |
| Hedman Ericsson Patent AB | 15 |
1 |
| MAN Diesel A/S | 10 |
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 | 50 |
1 |
| Other owners | 1 |