- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 19/04 - Obtaining zinc by distilling
Patent holdings for IPC class C22B 19/04
Total number of patents in this class: 27
10-year publication summary
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0
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1
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0
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3
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1
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2
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4
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5
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0
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1
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Glencore Technology Pty Ltd | 55 |
5 |
| Chugai Ro Co., Ltd. | 130 |
3 |
| Guizhou University | 63 |
2 |
| Umicore | 775 |
2 |
| TCM Research Ltd. | 8 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 9139 |
1 |
| Beijing University of Technology | 520 |
1 |
| Betek GmbH & Co. KG | 158 |
1 |
| Cardero Resource Corporation | 3 |
1 |
| Chubu Electric Power Co., Inc. | 50 |
1 |
| Danmarks Tekniske Universitet | 1029 |
1 |
| Outotec (Finland) Oy | 455 |
1 |
| Sumitomo Heavy Industries, Ltd. | 2112 |
1 |
| Tata Steel Ijmuiden B.V. | 328 |
1 |
| Tata Steel Limited | 166 |
1 |
| Tokuden Co., Ltd. | 41 |
1 |
| Liuzhou Huaxi Nonferrous Design and Research Institute Co., Ltd | 12 |
1 |
| Laibin Huaxi Smelting Co., Ltd | 1 |
1 |
| Other owners | 0 |