- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F22B - Methods of steam generationsteam boilers
- F22B 37/44 - Applications, arrangements or dispositions of alarm or automatic safety devices of safety valves
Patent holdings for IPC class F22B 37/44
Total number of patents in this class: 11
10-year publication summary
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2
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0
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1
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2
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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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1
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| New Watt (Fujian) High-Tech Co. Ltd. | 8 |
2 |
| Siemens AG | 24132 |
1 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11021 |
1 |
| China National Petroleum Corporation | 580 |
1 |
| Fujikin Incorporated | 697 |
1 |
| GREE Electric Appliances, Inc. of Zhuhai | 3289 |
1 |
| Korea Hydro & Nuclear Power Co., Ltd. | 538 |
1 |
| Zhuhai GREE Intelligent Equipment Co., Ltd | 75 |
1 |
| China Liaohe Petroleum Engineering Co., Ltd | 1 |
1 |
| Liaohe Petroleum Exploration Bureau Co., Ltd | 1 |
1 |
| Other owners | 0 |