- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F27B - Furnaces, kilns, ovens, or retorts in general; open 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: 169
10-year publication summary
|
19
|
11
|
15
|
11
|
8
|
6
|
4
|
16
|
6
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Paul Wurth S.A. | 392 |
77 |
| JFE Steel Corporation | 6067 |
10 |
| Metso Metals Oy | 205 |
8 |
| Danieli & C. Officine Meccaniche S.p.A. | 680 |
6 |
| Omya International AG | 816 |
4 |
| Outotec (Finland) Oy | 491 |
3 |
| Siemens VAI Metals Technologies, Ltd. | 20 |
3 |
| Paul Wurth IHI Co., Ltd. | 9 |
3 |
| Siemens VAI Metals Technologies GmbH | 233 |
2 |
| Binder + Co AG | 48 |
2 |
| Danieli Corus BV | 28 |
2 |
| HYL Technologies, S.A. de C.V. | 41 |
2 |
| SMS Group GmbH | 1029 |
2 |
| Technological Resources Pty. Limited | 444 |
2 |
| Tecnored Desenvolvimento Tecnologico S.A. | 22 |
2 |
| Hybrit Development AB | 38 |
2 |
| Tdco GmbH | 2 |
2 |
| Siemens AG | 24990 |
1 |
| Aisin Takaoka Co., Ltd. | 101 |
1 |
| ASM IP Holding B.V. | 1715 |
1 |
| Other owners | 34 |