- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 15/00 - Obtaining copper
Patent holdings for IPC class C22B 15/00
Total number of patents in this class: 1494
10-year publication summary
|
77
|
99
|
86
|
78
|
87
|
113
|
126
|
148
|
140
|
88
|
| 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. | 1971 |
77 |
| Freeport Minerals Corporation | 135 |
63 |
| BASF SE | 21303 |
41 |
| JX Nippon Mining & Metals Corporation | 1461 |
37 |
| Metso Metals Oy | 224 |
33 |
| Outotec (Finland) Oy | 455 |
27 |
| Technological Resources Pty. Limited | 443 |
26 |
| Jetti Resources, LLC | 39 |
25 |
| Outotec Oyj | 236 |
23 |
| Umicore | 773 |
21 |
| BHP Chile Inc. | 23 |
18 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1265 |
18 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1226 |
18 |
| Metso Finland Oy | 688 |
18 |
| FLSmidth A/S | 787 |
17 |
| Metallo Belgium | 50 |
16 |
| Ceibo Inc. | 70 |
15 |
| Kyushu University, National University Corporation | 1707 |
13 |
| Northeastern University | 573 |
11 |
| Nova Mineralis S.A. | 13 |
11 |
| Other owners | 966 |