- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 19/28 - Obtaining zinc or zinc oxide from muffle furnace residues
Patent holdings for IPC class C22B 19/28
Total number of patents in this class: 14
10-year publication summary
|
1
|
0
|
0
|
0
|
1
|
1
|
1
|
1
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Minex Technologies Limited | 3 |
3 |
| Korea Zinc Co., Ltd. | 63 |
2 |
| Umicore | 606 |
2 |
| ArcelorMittal Bremen GmbH | 2 |
1 |
| ArcelorMittal Investigacion y Desarrollo SL | 209 |
1 |
| Kinotech Solar Energy Corporation | 13 |
1 |
| Paul Wurth S.A. | 409 |
1 |
| S.A. Lhoist Recherche et Developpement | 169 |
1 |
| 9203-5468 Québec Inc | 5 |
1 |
| Minex Technology Group Limited | 2 |
1 |
| Other owners | 0 |