- 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: 16
10-year publication summary
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14
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Danieli & C. Officine Meccaniche S.p.A. | 716 |
1 |
| Dowa Holdings Co., Ltd. | 80 |
1 |
| Fukuoka Institute of Technology | 21 |
1 |
| Nucor Corporation | 419 |
1 |
| Rheinkalk GmbH | 28 |
1 |
| S.A. Lhoist Recherche et Developpement | 176 |
1 |
| Saint-Gobain Isover | 642 |
1 |
| Taiheiyo Cement Corporation | 243 |
1 |
| ThyssenKrupp AG | 3311 |
1 |
| Toyota School Foundation | 64 |
1 |
| Gf-elti S.r.l. | 10 |
1 |
| Agc, Inc. | 4940 |
1 |
| Veolia Nuclear Solutions Inc. | 63 |
1 |
| Metix (Pty) Limited | 9 |
1 |
| Saint-Gobain Finland Oy | 4 |
1 |
| thyssenkrupp Polysius GmbH | 132 |
1 |
| Other owners | 0 |