- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment of raw materials
- C22B 1/00 - Preliminary treatment of ores or scrap
Patent holdings for IPC class C22B 1/00
Total number of patents in this class: 867
10-year publication summary
51
|
63
|
42
|
83
|
75
|
73
|
75
|
112
|
98
|
22
|
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 |
31 |
BASF SE | 19740 |
19 |
JX Nippon Mining & Metals Corporation | 1576 |
15 |
Li-Cycle Corp. | 36 |
14 |
Umicore | 542 |
10 |
Anglo American Technical & Sustainability Services Ltd | 52 |
9 |
Hatch Ltd. | 219 |
8 |
Novelis Inc. | 656 |
8 |
Technological Resources Pty. Limited | 444 |
8 |
Metso Outotec Finland Oy | 795 |
8 |
Ecolab USA Inc. | 5190 |
7 |
Guangdong Brunp Recycling Technology Co., Ltd | 674 |
7 |
House of Metals Company Limited | 33 |
7 |
Hunan Brunp Recycling Technology Co., Ltd. | 622 |
7 |
Vale S.A. | 262 |
7 |
FLSmidth A/S | 923 |
7 |
Barrick Gold Corporation | 73 |
6 |
Kyushu University, National University Corporation | 1572 |
6 |
Outotec (Finland) Oy | 491 |
6 |
JFE Steel Corporation | 6067 |
5 |
Other owners | 672 |