- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment of raw materials
- C22B 3/14 - Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic alkaline solutions containing ammonia or ammonium salts
Patent holdings for IPC class C22B 3/14
Total number of patents in this class: 128
10-year publication summary
11
|
13
|
8
|
5
|
9
|
8
|
11
|
10
|
15
|
5
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Metaleach Limited | 18 |
10 |
Metals Technology Development Company LLC | 8 |
5 |
Sichuan Juhong Technology Co., Ltd. | 8 |
5 |
Stillwater Mining Company | 6 |
4 |
Chongqing Dongqun Technology Co., Ltd. | 5 |
4 |
Avanti Materials Ltd | 9 |
4 |
ENGITEC TECHNOLOGIES S.p.A. | 24 |
3 |
Freeport Minerals Corporation | 80 |
3 |
Metallic Waste Solutions Pty Ltd. | 4 |
3 |
Terralithium LLC | 52 |
3 |
Barrick Gold Corporation | 73 |
2 |
BHP Billiton Nickel West Pty Ltd | 3 |
2 |
Commonwealth Scientific and Industrial Research Organisation | 1652 |
2 |
Cytec Technology Corp. | 328 |
2 |
Guangdong Brunp Recycling Technology Co., Ltd | 674 |
2 |
Hunan Brunp Recycling Technology Co., Ltd. | 622 |
2 |
Lixivia, Inc. | 36 |
2 |
Yava Technologies Inc. | 9 |
2 |
Florean Victor | 2 |
2 |
Jiangxi University of Science and Technology | 55 |
2 |
Other owners | 64 |