- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 9/21 - Apparatus therefor
Patent holdings for IPC class C22B 9/21
Total number of patents in this class: 7
10-year publication summary
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Alu Innovation AS | 6 |
1 |
| CBL Industrial Services, Inc. | 5 |
1 |
| The Foundation for the Promotion of Industrial Science | 42 |
1 |
| Hatch Ltd. | 218 |
1 |
| Institute of Metal Research Chinese Academy of Sciences | 122 |
1 |
| Umicore AG & Co. KG | 848 |
1 |
| Obschestvo S Ogranichennoi Otvetstvennostju "nauchno-proizvodstvennaya Firma "ruteny" | 1 |
1 |
| Other owners | 0 |