- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01L - Cyclically operating valves for machines or engines
- F01L 13/02 - Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for reversing
Patent holdings for IPC class F01L 13/02
Total number of patents in this class: 7
10-year publication summary
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1
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0
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0
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1
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0
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0
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0
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1
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0
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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
|
|---|---|---|
| Toyota Motor Corporation | 36544 |
1 |
| Eaton Corporation | 1802 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 34724 |
1 |
| Schaeffler Technologies AG & Co. KG | 11272 |
1 |
| Echogen Power Systems, LLC | 63 |
1 |
| Tigers Polymer Corporation | 40 |
1 |
| Yamaha Hatsudoki Kabushiki Kaisha | 2261 |
1 |
| Other owners | 0 |