- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
Patent holdings for IPC class C22B 7/00
Total number of patents in this class: 4041
10-year publication summary
|
160
|
143
|
168
|
159
|
228
|
323
|
417
|
494
|
500
|
290
|
| 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. | 1968 |
170 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1258 |
133 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1221 |
133 |
| BASF SE | 21292 |
72 |
| Umicore | 768 |
65 |
| JX Metals Circular Solutions Co., Ltd. | 79 |
55 |
| Hunan Brunp EV Recycling Co., Ltd. | 378 |
50 |
| JX Nippon Mining & Metals Corporation | 1462 |
44 |
| LG Energy Solution, Ltd. | 18666 |
39 |
| Mitsubishi Materials Corporation | 2467 |
36 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11118 |
32 |
| JFE Steel Corporation | 7465 |
31 |
| POSCO Holdings Inc. | 676 |
31 |
| Beijing University of Technology | 519 |
27 |
| Asaka Riken Co., Ltd. | 54 |
25 |
| SK Innovation Co., Ltd. | 1478 |
25 |
| Hitachi, Ltd. | 16031 |
24 |
| Dowa ECO-SYSTEM Co., Ltd. | 58 |
24 |
| Ascend Elements, Inc. | 86 |
24 |
| 1001297676 Ontario Inc. | 30 |
24 |
| Other owners | 2977 |