- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 1/20 - SinteringAgglomerating in sintering machines with movable grates
Patent holdings for IPC class C22B 1/20
Total number of patents in this class: 173
10-year publication summary
|
11
|
20
|
8
|
1
|
3
|
6
|
10
|
17
|
13
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 7527 |
46 |
| Outotec (Finland) Oy | 455 |
14 |
| Luossavaara-Kiirunavaara AB | 132 |
13 |
| Nippon Steel Corporation | 6871 |
11 |
| POSCO | 2143 |
11 |
| Metso Metals Oy | 224 |
10 |
| Outotec Oyj | 236 |
7 |
| Zhongye Changtian International Engineering Co., Ltd. | 78 |
5 |
| Primetals Technologies Austria GmbH | 573 |
4 |
| JP Steel Plantech Co. | 81 |
3 |
| Rheinkalk GmbH | 28 |
3 |
| Vale S.A. | 262 |
3 |
| Metal 7 Inc. | 7 |
3 |
| ArcelorMittal | 2672 |
2 |
| Corporacion Nacional Del Cobre de Chile | 25 |
2 |
| Nippon Steel & Sumitomo Metal Corporation | 1981 |
2 |
| Paul Wurth S.A. | 432 |
2 |
| Samarco Mineracao S/A | 6 |
2 |
| Tokuden Co., Ltd. | 41 |
2 |
| Metso Metals Oy | 43 |
2 |
| Other owners | 26 |