- 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: 1542
10-year publication summary
|
77
|
99
|
86
|
78
|
87
|
113
|
126
|
148
|
142
|
126
|
| 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. | 2011 |
77 |
| Freeport Minerals Corporation | 145 |
70 |
| BASF SE | 21318 |
40 |
| JX Nippon Mining & Metals Corporation | 1454 |
37 |
| Metso Metals Oy | 226 |
35 |
| Outotec (Finland) Oy | 455 |
27 |
| Technological Resources Pty. Limited | 443 |
26 |
| Jetti Resources, LLC | 39 |
25 |
| Outotec Oyj | 233 |
23 |
| Umicore | 779 |
21 |
| Metso Finland Oy | 695 |
19 |
| BHP Chile Inc. | 22 |
18 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1273 |
18 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1227 |
18 |
| FLSmidth A/S | 786 |
17 |
| Metallo Belgium | 50 |
16 |
| Ceibo Inc. | 15 |
15 |
| Kyushu University, National University Corporation | 1735 |
13 |
| China ENFI Engineering Corp. | 120 |
13 |
| Glencore Technology Pty Ltd | 55 |
11 |
| Other owners | 1003 |