- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F27B - Furnaces, kilns, ovens or retorts in generalopen sintering or like apparatus
- F27B 1/28 - Arrangements of monitoring devices, of indicators, of alarm devices
Patent holdings for IPC class F27B 1/28
Total number of patents in this class: 78
10-year publication summary
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5
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6
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8
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4
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6
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9
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6
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10
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4
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3
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 7329 |
12 |
| ArcelorMittal | 2525 |
6 |
| Tata Steel Limited | 164 |
6 |
| POSCO | 2155 |
5 |
| ThyssenKrupp AG | 3460 |
3 |
| TMT - Tapping Measuring Technology SARL | 32 |
3 |
| ExxonMobil Chemical Patents Inc. | 3845 |
2 |
| Harbisonwalker International, Inc. | 236 |
2 |
| Maerz Ofenbau AG | 49 |
2 |
| PaneraTech, Inc. | 33 |
2 |
| Primetals Technologies Austria GmbH | 565 |
2 |
| Tata Steel Ijmuiden B.V. | 318 |
2 |
| GPCP IP Holdings LLC | 1550 |
2 |
| Imertech SAS | 238 |
2 |
| Excello Co., Ltd. | 10 |
2 |
| Cemgreen ApS | 13 |
2 |
| Siemens VAI Metals Technologies GmbH | 209 |
1 |
| ASM IP Holding B.V. | 2275 |
1 |
| Centre de Recherches Metallurgiques ASBL - Centrum voor Research in de Metallurgie VZW | 39 |
1 |
| Chongqing University | 295 |
1 |
| Other owners | 19 |