- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F27B - Furnaces, kilns, ovens or retorts in generalopen sintering or like apparatus
- F27B 7/34 - Arrangements of heating devices
Patent holdings for IPC class F27B 7/34
Total number of patents in this class: 113
10-year publication summary
|
8
|
6
|
5
|
7
|
6
|
11
|
3
|
12
|
11
|
14
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3932 |
7 |
| Air Products and Chemicals, Inc. | 1401 |
6 |
| ThyssenKrupp AG | 3266 |
4 |
| Quantum IR Technologies, LLC | 17 |
4 |
| thyssenkrupp Polysius GmbH | 128 |
4 |
| Fives Pillard | 46 |
3 |
| IFP Energies Nouvelles | 2893 |
3 |
| LG Chem, Ltd. | 17561 |
2 |
| Innord Inc. | 3 |
2 |
| KHD Humboldt Wedag GmbH | 192 |
2 |
| Neste Oyj | 779 |
2 |
| Noritake Co., Limited | 246 |
2 |
| Novelis Inc. | 735 |
2 |
| Prosap | 7 |
2 |
| Ryukosogyo, Co., Ltd. | 4 |
2 |
| Taiheiyo Cement Corporation | 235 |
2 |
| LG Energy Solution, Ltd. | 14424 |
2 |
| Siemens AG | 24561 |
1 |
| Shell Internationale Research Maatschappij B.V. | 3544 |
1 |
| Semiconductor Energy Laboratory Co., Ltd. | 11358 |
1 |
| Other owners | 59 |