- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F01L - Cyclically operating valves for machines or engines
- F01L 31/12 - Valve adjustment by displacing eccentric
Patent holdings for IPC class F01L 31/12
Total number of patents in this class: 3
10-year publication summary
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0
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0
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0
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0
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2
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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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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Great Wall Motor Company Limited | 726 |
1 |
| Timken US Corporation | 21 |
1 |
| Mitsubishi Electric Mobility Corporation | 1041 |
1 |
| Other owners | 0 |