- All sections
- C - Chemistrymetallurgy
- C21C - Processing of pig-iron, e.g. refining, manufacture of wrought-iron or steeltreatment in molten state of ferrous alloys
- C21C 7/076 - Use of slags or fluxes as treating agents
Patent holdings for IPC class C21C 7/076
Total number of patents in this class: 121
10-year publication summary
|
6
|
6
|
8
|
11
|
8
|
10
|
11
|
4
|
7
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 6220 |
9 |
| JFE Steel Corporation | 6827 |
8 |
| ArcelorMittal | 2275 |
5 |
| Foseco International Limited | 213 |
5 |
| Nippon Yakin Kogyo Co., Ltd. | 63 |
4 |
| Nucor Corporation | 416 |
4 |
| Umicore | 640 |
4 |
| JTEKT Corporation | 2492 |
3 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2873 |
3 |
| POSCO Co., Ltd. | 1562 |
3 |
| Sumitomo Metal Industries, Ltd. | 383 |
3 |
| Almamet USA, Inc. | 2 |
2 |
| Baoshan Iron & Steel Co., Ltd. | 961 |
2 |
| Denka Company Limited | 2565 |
2 |
| POSCO | 2187 |
2 |
| Recoval Belgium | 13 |
2 |
| Soochow University | 1735 |
2 |
| Tata Steel Nederland Technology BV | 151 |
2 |
| Carmeuse Research and Technology | 22 |
2 |
| NIPPON STEEL Stainless Steel Corporation | 286 |
2 |
| Other owners | 52 |