- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F27B - Furnaces, kilns, ovens, or retorts in general; open sintering or like apparatus
- F27B 1/09 - Shaft or like vertical or substantially vertical furnaces heated otherwise than by solid fuel mixed with charge heated electrically
Patent holdings for IPC class F27B 1/09
Total number of patents in this class: 12
10-year publication summary
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0
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2
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1
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1
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2
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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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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Electrode Company, Ltd. | 14 |
2 |
| BASF SE | 19740 |
1 |
| Sumitomo Electric Industries, Ltd. | 14131 |
1 |
| Inter-university Research Institute Corporation National Institutes of Natural Sciences | 147 |
1 |
| Shenyang Beiye Metallurgical Technology Co., Ltd. | 10 |
1 |
| Tokai Konetsu Kogyo Co., Ltd. | 3 |
1 |
| Tokyo Institute of Technology | 1367 |
1 |
| China ENFI Engineering Corp. | 91 |
1 |
| Guangdong Beisheng Yitong Industrial Co., Ltd. | 6 |
1 |
| Obshchestvo S Ogranichennoj Otvetstvennostyu "uralnipineft" | 1 |
1 |
| Resonac Graphite Germany GmbH | 10 |
1 |
| Other owners | 0 |