- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 5/02 - Dry processes
Patent holdings for IPC class C22B 5/02
Total number of patents in this class: 132
10-year publication summary
|
6
|
9
|
6
|
5
|
5
|
3
|
9
|
23
|
13
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Metal Mining Co., Ltd. | 1922 |
22 |
| JFE Steel Corporation | 7259 |
6 |
| POSCO Holdings Inc. | 361 |
5 |
| Metalysis Limited | 46 |
4 |
| Pan Pacific Copper Co., Ltd. | 31 |
4 |
| Metso Metals Oy | 217 |
4 |
| Outotec (Finland) Oy | 458 |
3 |
| POSCO Co., Ltd. | 1649 |
3 |
| Metallo Belgium | 50 |
3 |
| JX Metals Smelting Co., Ltd. | 4 |
3 |
| JX Nippon Mining & Metals Corporation | 1470 |
2 |
| Mitsubishi Materials Corporation | 2467 |
2 |
| Nu-Iron Technology, LLC | 30 |
2 |
| Starfire Industries, LLC | 44 |
2 |
| Tianjin Flash Ironmaking Technology Co., Ltd. | 6 |
2 |
| Compañia Minera Pargo Minerals SpA | 4 |
2 |
| Helios Project Ltd. | 21 |
2 |
| EnhancedGEO Holdings, LLC | 74 |
2 |
| Honda Motor Co., Ltd. | 25811 |
1 |
| Siemens AG | 24299 |
1 |
| Other owners | 57 |