- All sections
- C - Chemistrymetallurgy
- C01G - Compounds containing metals not covered by subclasses or
- C01G 49/08 - Ferroso-ferric oxide [Fe3O4]
Patent holdings for IPC class C01G 49/08
Total number of patents in this class: 346
10-year publication summary
|
24
|
25
|
18
|
20
|
18
|
17
|
18
|
16
|
34
|
11
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toda Kogyo Corporation | 329 |
8 |
| The Regents of the University of California | 20790 |
6 |
| Centre National de La Recherche Scientifique | 11042 |
6 |
| Colorobbia Italia S.p.A. | 39 |
6 |
| Alphaonco | 36 |
6 |
| Dowa Electronics Materials Co., Ltd. | 636 |
5 |
| JFE Steel Corporation | 7562 |
5 |
| SICPA Holding SA | 952 |
5 |
| Massachusetts Institute of Technology | 10259 |
4 |
| Ecolab USA Inc. | 5807 |
4 |
| Fives FCB | 66 |
4 |
| Fondazione Istituto Italiano di Tecnologia | 629 |
4 |
| Ohio State Innovation Foundation | 2383 |
4 |
| UTi Limited Partnership | 462 |
4 |
| FUJIFILM Corporation | 30543 |
3 |
| Koninklijke Philips Electronics N.V. | 7357 |
3 |
| Dai-Ichi High Frequency Co., Ltd. | 37 |
3 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1268 |
3 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1226 |
3 |
| King Faisal University | 933 |
3 |
| Other owners | 257 |