- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 1/40 - Valve members of helical shape
Patent holdings for IPC class F16K 1/40
Total number of patents in this class: 9
10-year publication summary
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2
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0
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0
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0
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0
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0
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1
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2
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1
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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
|
|---|---|---|
| Proportion-Air, Inc. | 6 |
2 |
| Hyundai Motor Company | 24745 |
1 |
| Bermad CS Ltd. | 53 |
1 |
| Canon Virginia, Inc. | 136 |
1 |
| Dropsa S.p.A. | 29 |
1 |
| Sedal Digital Systems, S.L. | 2 |
1 |
| Shandong Future Robot Co., Ltd | 4 |
1 |
| Noztech Petrol Eki̇pmanlari Teknoloji̇ Sanayi̇ Ti̇caret Anoni̇m Şi̇rketi̇ | 8 |
1 |
| Other owners | 0 |