- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F27D - Details or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace
- F27D 17/20 - Arrangements for treatment or cleaning of waste gases
Patent holdings for IPC class F27D 17/20
Total number of patents in this class: 55
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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1
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0
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3
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1
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21
|
25
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ArcelorMittal | 2672 |
6 |
| S.A. Lhoist Recherche et Developpement | 205 |
5 |
| JFE Steel Corporation | 7527 |
2 |
| Nucor Corporation | 418 |
2 |
| Taiheiyo Cement Corporation | 243 |
2 |
| ThyssenKrupp AG | 3409 |
2 |
| Metix (Pty) Limited | 14 |
2 |
| thyssenkrupp Polysius GmbH | 165 |
2 |
| Schlumberger Technology Corporation | 11818 |
1 |
| TDK Corporation | 6858 |
1 |
| Siemens Energy, Inc. | 1685 |
1 |
| Borbet GmbH, | 10 |
1 |
| Danieli & C. Officine Meccaniche S.p.A. | 720 |
1 |
| Desktop Metal, Inc. | 240 |
1 |
| Dowa Holdings Co., Ltd. | 87 |
1 |
| Fukuoka Institute of Technology | 24 |
1 |
| JP Steel Plantech Co. | 81 |
1 |
| Kunming University of Science and Technology | 244 |
1 |
| Nippon Steel Corporation | 6871 |
1 |
| Outokumpu Oyj | 265 |
1 |
| Other owners | 20 |