- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F27B - Furnaces, kilns, ovens or retorts in generalopen sintering or like apparatus
- F27B 1/02 - Shaft or like vertical or substantially vertical furnaces with two or more shafts or chambers, e.g. multi-storey
Patent holdings for IPC class F27B 1/02
Total number of patents in this class: 86
10-year publication summary
|
8
|
6
|
2
|
2
|
2
|
1
|
12
|
4
|
14
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Maerz Ofenbau AG | 44 |
14 |
| ThyssenKrupp AG | 3276 |
13 |
| S.A. Lhoist Recherche et Developpement | 172 |
7 |
| Tecnored Desenvolvimento Tecnologico S.A. | 33 |
6 |
| Tecforlime | 9 |
5 |
| thyssenkrupp Polysius GmbH | 130 |
5 |
| ThyssenKrupp Industrial Solutions AG | 632 |
4 |
| Calix Ltd | 94 |
2 |
| Paul Wurth S.A. | 418 |
2 |
| Hybrit Development AB | 59 |
2 |
| SIS Corporation | 6 |
2 |
| FUJIFILM Corporation | 29295 |
1 |
| Tokyo Electron Limited | 12620 |
1 |
| Baoshan Iron & Steel Co., Ltd. | 959 |
1 |
| Eugene Technology Co., Ltd. | 173 |
1 |
| Gautschi Engineering GmbH | 12 |
1 |
| Magna International Inc. | 1224 |
1 |
| Omya International AG | 773 |
1 |
| Sandvik Intellectual Property AB | 1484 |
1 |
| Schunk Kohlenstofftechnik GmbH | 131 |
1 |
| Other owners | 15 |