- 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: 122
10-year publication summary
|
6
|
2
|
2
|
2
|
1
|
12
|
4
|
18
|
19
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| S.A. Lhoist Recherche et Developpement | 205 |
26 |
| Maerz Ofenbau AG | 53 |
20 |
| ThyssenKrupp AG | 3386 |
18 |
| Tecnored Desenvolvimento Tecnologico S.A. | 43 |
7 |
| thyssenkrupp Polysius GmbH | 167 |
7 |
| Tecforlime | 9 |
5 |
| ThyssenKrupp Industrial Solutions AG | 630 |
4 |
| Calix Ltd | 88 |
2 |
| Paul Wurth S.A. | 429 |
2 |
| Yara International ASA | 907 |
2 |
| Hybrit Development AB | 74 |
2 |
| SIS Corporation | 6 |
2 |
| Furno Materials Inc. | 10 |
2 |
| EFC Co., LTD | 5 |
2 |
| FUJIFILM Corporation | 30562 |
1 |
| Tokyo Electron Limited | 13854 |
1 |
| Baoshan Iron & Steel Co., Ltd. | 1108 |
1 |
| Eugene Technology Co., Ltd. | 186 |
1 |
| Gautschi Engineering GmbH | 12 |
1 |
| Magna International Inc. | 1176 |
1 |
| Other owners | 15 |