- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 4/08 - Apparatus
Patent holdings for IPC class C22B 4/08
Total number of patents in this class: 85
10-year publication summary
|
5
|
4
|
7
|
5
|
8
|
6
|
2
|
6
|
10
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Umicore | 599 |
4 |
| Mitsubishi Heavy Industries, Ltd. | 8545 |
3 |
| Clene Nanomedicine, Inc. | 31 |
3 |
| Elkem AS | 63 |
3 |
| Hatch Ltd. | 215 |
3 |
| Platinum Group Chile SpA | 3 |
3 |
| Centre National de La Recherche Scientifique | 10124 |
2 |
| Advanced Fusion Systems LLC | 67 |
2 |
| Alcoa Inc. | 299 |
2 |
| Global Metal Technologies LLC | 2 |
2 |
| Northeastern University | 522 |
2 |
| Technological Resources Pty. Limited | 445 |
2 |
| Paris Sciences et Lettres - Quartier Latin | 200 |
2 |
| Clean Resources Pte. Ltd | 6 |
2 |
| Tetronics Technologies Limited | 5 |
2 |
| Metso Metals Oy | 223 |
2 |
| Siemens AG | 24568 |
1 |
| The Johns Hopkins University | 5535 |
1 |
| ABB Schweiz AG | 6635 |
1 |
| The Arizona Board of Regents on Behalf of the University of Arizona | 2069 |
1 |
| Other owners | 42 |