- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F27B - Furnaces, kilns, ovens, or retorts in general; open sintering or like apparatus
- F27B 21/02 - Sintering grates or tables
Patent holdings for IPC class F27B 21/02
Total number of patents in this class: 46
10-year publication summary
|
1
|
8
|
8
|
5
|
5
|
2
|
4
|
0
|
3
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| POSCO | 2204 |
8 |
| Quantumscape Battery, Inc. | 181 |
7 |
| Paul Wurth S.A. | 410 |
5 |
| Outotec Oyj | 300 |
4 |
| Paul Wurth Deutschland GmbH | 28 |
4 |
| Outotec (Finland) Oy | 489 |
3 |
| Metso Minerals Industries, Inc. | 56 |
2 |
| Metal 7 Inc. | 7 |
2 |
| Metso Metals Oy | 223 |
2 |
| 3m Innovative Properties Company | 17957 |
1 |
| Alcoa Inc. | 300 |
1 |
| Kabushiki Kaisha Shofu | 88 |
1 |
| Paul Wurth Refractory & Engineering GmbH | 12 |
1 |
| Babcock & Wilcox Vølund ApS | 15 |
1 |
| Babcock & Wilcox Voelund A/S | 3 |
1 |
| Changsha Vibo Wearable Material Co., Ltd. | 2 |
1 |
| Metso Outotec USA Inc. | 135 |
1 |
| Northern Engineering & Technology Corporation (dalian), MCC | 3 |
1 |
| Other owners | 0 |