- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F27B - Furnaces, kilns, ovens or retorts in generalopen sintering or like apparatus
- F27B 1/20 - Arrangement of devices for charging
Patent holdings for IPC class F27B 1/20
Total number of patents in this class: 178
10-year publication summary
|
15
|
11
|
8
|
6
|
4
|
16
|
7
|
7
|
8
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Paul Wurth S.A. | 435 |
75 |
| JFE Steel Corporation | 7692 |
11 |
| Metso Metals Oy | 226 |
9 |
| Danieli & C. Officine Meccaniche S.p.A. | 727 |
6 |
| Omya International AG | 779 |
3 |
| Outotec (Finland) Oy | 455 |
3 |
| S.A. Lhoist Recherche et Developpement | 207 |
3 |
| Hybrit Development AB | 75 |
3 |
| Paul Wurth IHI Co., Ltd. | 9 |
3 |
| Binder + Co AG | 43 |
2 |
| Danieli Corus BV | 25 |
2 |
| HYL Technologies, S.A. de C.V. | 47 |
2 |
| Nippon Steel Corporation | 7102 |
2 |
| Nucor Corporation | 419 |
2 |
| POSCO Co., Ltd. | 2034 |
2 |
| Siemens VAI Metals Technologies, Ltd. | 16 |
2 |
| SMS Group GmbH | 1221 |
2 |
| Technological Resources Pty. Limited | 443 |
2 |
| Tecnored Desenvolvimento Tecnologico S.A. | 43 |
2 |
| Tdco GmbH | 2 |
2 |
| Other owners | 40 |