- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F27B - Furnaces, kilns, ovens or retorts in generalopen sintering or like apparatus
- F27B 9/39 - Arrangement of devices for discharging
Patent holdings for IPC class F27B 9/39
Total number of patents in this class: 40
10-year publication summary
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1
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2
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1
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3
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2
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1
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2
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2
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4
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3
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NGK Insulators, Ltd. | 4973 |
5 |
| Noritake Co., Limited | 258 |
4 |
| NGK Kilntech, Corporation | 24 |
4 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2870 |
3 |
| Toshiba Corporation | 12376 |
1 |
| Areva NC | 134 |
1 |
| BBC Co., Ltd. | 17 |
1 |
| Chugai Ro Co., Ltd. | 130 |
1 |
| Danieli & C. Officine Meccaniche S.p.A. | 718 |
1 |
| Danieli Centro Combustion S.p.A. | 11 |
1 |
| Decoral System USA Corp. | 6 |
1 |
| Hans Lingl Anlagenbau und Verfahrenstechnik GmbH & Co. KG | 12 |
1 |
| IMP Group (Pty) Ltd | 7 |
1 |
| Kookmin University Industry Academy Cooperation Foundation | 395 |
1 |
| Lazar Anode Technologies AG | 3 |
1 |
| Magna International Inc. | 1241 |
1 |
| Nippon Steel Engineering Co., Ltd. | 206 |
1 |
| Nittetsu Plant designing Corporation | 12 |
1 |
| Otto Junker GmbH | 27 |
1 |
| Saipem S.p.A. | 520 |
1 |
| Other owners | 8 |