- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment of raw materials
- C22B 5/02 - Dry processes
Patent holdings for IPC class C22B 5/02
Total number of patents in this class: 94
10-year publication summary
|
8
|
7
|
7
|
9
|
7
|
5
|
6
|
4
|
12
|
7
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Metal Mining Co., Ltd. | 1670 |
14 |
| JFE Steel Corporation | 6067 |
5 |
| Metalysis Limited | 49 |
4 |
| Pan Pacific Copper Co., Ltd. | 31 |
4 |
| Nu-Iron Technology, LLC | 44 |
3 |
| Outotec (Finland) Oy | 491 |
3 |
| Metallo Belgium | 53 |
3 |
| Metso Metals Oy | 205 |
3 |
| JX Metals Smelting Co., Ltd. | 4 |
3 |
| Siemens AG | 24990 |
2 |
| JX Nippon Mining & Metals Corporation | 1576 |
2 |
| Tianjin Flash Ironmaking Technology Co., Ltd. | 6 |
2 |
| Compañia Minera Pargo Minerals SpA | 4 |
2 |
| Honda Motor Co., Ltd. | 24537 |
1 |
| FUJIFILM Corporation | 27102 |
1 |
| Andritz AG | 218 |
1 |
| ArcelorMittal | 1887 |
1 |
| Asesorias y Servicios Innovaxxion SpA | 9 |
1 |
| Chinook Sciences LLC | 1 |
1 |
| Dowa Metals & Mining Co., Ltd. | 44 |
1 |
| Other owners | 37 |