- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F27B - Furnaces, kilns, ovens, or retorts in general; open sintering or like apparatus
- F27B 21/14 - Arrangement of controlling, monitoring, alarm or like devices
Patent holdings for IPC class F27B 21/14
Total number of patents in this class: 23
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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0
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2
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1
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4
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1
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1
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Zhongye Changtian International Engineering Co., Ltd. | 75 |
7 |
| JFE Steel Corporation | 6557 |
6 |
| Nippon Steel Corporation | 6012 |
5 |
| JP Steel Plantech Co. | 81 |
2 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2906 |
1 |
| Paul Wurth S.A. | 410 |
1 |
| Zhongye Changtian (Changsha) Intelligent Technology Co., Ltd | 2 |
1 |
| Other owners | 0 |