- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment of raw materials
- C22B 19/32 - Refining zinc
Patent holdings for IPC class C22B 19/32
Total number of patents in this class: 20
10-year publication summary
|
4
|
4
|
2
|
0
|
2
|
1
|
1
|
0
|
3
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kinotech Solar Energy Corporation | 13 |
3 |
| Glencore Technology Pty Ltd | 46 |
2 |
| Korea Zinc Co., Ltd. | 41 |
2 |
| Metaleach Limited | 18 |
2 |
| Southwire Company, LLC | 711 |
2 |
| Honeywell International Inc. | 13799 |
1 |
| Mitsubishi Materials Corporation | 2378 |
1 |
| Puvvada, George | 1 |
1 |
| Tohoku University | 2526 |
1 |
| Xi'an Jiaotong University | 579 |
1 |
| Young Poong Corporation | 4 |
1 |
| Zinchem - a Division of Zimco Group (Pty) Ltd | 2 |
1 |
| Kunming Hanchuang Science and Technology Co., Ltd | 4 |
1 |
| Shaanxi Zinc Industry Co., Ltd. | 3 |
1 |
| Other owners | 0 |