- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment 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: 2757
10-year publication summary
|
176
|
157
|
160
|
143
|
167
|
158
|
226
|
317
|
390
|
147
|
| 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 |
131 |
| Guangdong Brunp Recycling Technology Co., Ltd | 674 |
79 |
| Hunan Brunp Recycling Technology Co., Ltd. | 622 |
78 |
| JX Nippon Mining & Metals Corporation | 1576 |
68 |
| Hunan Brunp EV Recycling Co., Ltd. | 327 |
45 |
| Umicore | 542 |
43 |
| BASF SE | 19740 |
42 |
| LG Energy Solution, Ltd. | 10813 |
31 |
| Mitsubishi Materials Corporation | 2378 |
26 |
| Beijing University of Technology | 437 |
25 |
| Li-Cycle Corp. | 36 |
25 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
22 |
| Dowa ECO-SYSTEM Co., Ltd. | 51 |
20 |
| Hunan Brunp Vehicles Recycling Co., Ltd. | 73 |
20 |
| JFE Steel Corporation | 6067 |
18 |
| Hitachi Metals, Ltd. | 2175 |
17 |
| SK Innovation Co., Ltd. | 1015 |
17 |
| Centre National de La Recherche Scientifique | 9632 |
16 |
| Dowa Metals & Mining Co., Ltd. | 44 |
15 |
| Asaka Riken Co., Ltd. | 35 |
14 |
| Other owners | 2005 |