- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 15/12 - Springs for ring valves
Patent holdings for IPC class F16K 15/12
Total number of patents in this class: 19
10-year publication summary
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0
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2
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3
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3
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2
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1
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0
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0
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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
|
|---|---|---|
| Nuovo Pignone Tecnologie S.r.l. | 1126 |
3 |
| Ohlins Racing AB | 120 |
2 |
| Hisense (Shandong) Refrigerator Co., Ltd. | 94 |
2 |
| Robert Bosch GmbH | 43428 |
1 |
| Hamilton Sundstrand Corporation | 5010 |
1 |
| Goodwin plc | 86 |
1 |
| HUSCO International, Inc. | 70 |
1 |
| Jay R. Smith Manufacturing Company | 8 |
1 |
| Miraial Co., Ltd. | 190 |
1 |
| Oceaneering International, Inc. | 427 |
1 |
| Saint-Gobain Performance Plastics Corporation | 1039 |
1 |
| Swagelok Company | 318 |
1 |
| Waters Technologies Corporation | 1770 |
1 |
| MITSUI E&S Co., Ltd. | 54 |
1 |
| Zurn Water, LLC | 264 |
1 |
| Other owners | 0 |