- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F27B - Furnaces, kilns, ovens or retorts in generalopen sintering or like apparatus
- F27B 1/00 - Shaft or like vertical or substantially vertical furnaces
Patent holdings for IPC class F27B 1/00
Total number of patents in this class: 222
10-year publication summary
|
4
|
10
|
8
|
6
|
5
|
22
|
15
|
37
|
28
|
20
|
| 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 | 206 |
31 |
| ThyssenKrupp AG | 3328 |
23 |
| Maerz Ofenbau AG | 54 |
19 |
| thyssenkrupp Polysius GmbH | 170 |
11 |
| Cemgreen ApS | 14 |
6 |
| Tecforlime | 9 |
5 |
| ThyssenKrupp Industrial Solutions AG | 630 |
4 |
| United States Gypsum Company | 949 |
4 |
| Binder + Co AG | 43 |
3 |
| JFE Steel Corporation | 7660 |
3 |
| Midrex Technologies, Inc. | 128 |
3 |
| Omya International AG | 780 |
3 |
| SMS Group GmbH | 1212 |
3 |
| Vicat | 104 |
3 |
| Hybrit Development AB | 75 |
3 |
| Carbicrete Inc. | 74 |
3 |
| ONEJOON GmbH | 36 |
3 |
| Carmeuse Technologies | 24 |
3 |
| Newsouth Innovations Pty Limited | 626 |
2 |
| Nippon Sanso Corporation | 31 |
2 |
| Other owners | 85 |