- 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: 18
10-year publication summary
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0
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0
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0
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1
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1
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1
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1
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1
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0
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3
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Korea Zinc Co., Ltd. | 171 |
2 |
| Minex Technologies Limited | 2 |
2 |
| Umicore | 775 |
2 |
| ArcelorMittal Bremen GmbH | 2 |
1 |
| ArcelorMittal Investigacion y Desarrollo SL | 207 |
1 |
| Borsodchem Zrt. | 32 |
1 |
| Kinotech Solar Energy Corporation | 12 |
1 |
| Paul Wurth S.A. | 432 |
1 |
| S.A. Lhoist Recherche et Developpement | 205 |
1 |
| Wanhua Chemical Group Co., Ltd. | 384 |
1 |
| X Development LLC | 1392 |
1 |
| 9203-5468 Québec Inc | 5 |
1 |
| Minex Technology Group Limited | 2 |
1 |
| Wanhua Chemical (Yantai) Battery Material Science Co., Ltd. | 39 |
1 |
| American Renewable Metals LLC | 3 |
1 |
| Other owners | 0 |