- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment of raw materials
- C22B 5/10 - Dry processes by solid carbonaceous reducing agents
Patent holdings for IPC class C22B 5/10
Total number of patents in this class: 257
10-year publication summary
|
10
|
26
|
24
|
17
|
16
|
18
|
14
|
29
|
21
|
15
|
| 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 |
45 |
| Technological Resources Pty. Limited | 444 |
12 |
| Tata Steel Limited | 184 |
11 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
9 |
| Carbon Technology Holdings, LLC | 185 |
6 |
| Elkem AS | 66 |
5 |
| Her Majesty the Queen in right of Canada, as represented by the Minister of Natural Resources | 105 |
4 |
| China ENFI Engineering Corp. | 91 |
4 |
| Alcoa Inc. | 323 |
3 |
| Commonwealth Scientific and Industrial Research Organisation | 1652 |
3 |
| JFE Steel Corporation | 6067 |
3 |
| Newsouth Innovations Pty Limited | 567 |
3 |
| Bozel Brasil SA | 4 |
3 |
| Obschestvo S Ogranichennoi Otvetstvennostyu "vi Kholding" | 5 |
3 |
| Ecoloop GmbH | 24 |
2 |
| Elkem ASA | 205 |
2 |
| Eth Zurich | 1193 |
2 |
| Forest Vue Research LLC | 2 |
2 |
| GB Group Holdings Limited | 2 |
2 |
| Guizhou University | 29 |
2 |
| Other owners | 131 |