- 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: 321
10-year publication summary
|
18
|
23
|
25
|
17
|
18
|
17
|
15
|
16
|
15
|
19
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toda Kogyo Corporation | 337 |
8 |
| The Regents of the University of California | 19961 |
6 |
| Centre National de La Recherche Scientifique | 10464 |
6 |
| Colorobbia Italia S.p.A. | 44 |
6 |
| Alphaonco | 34 |
6 |
| Dowa Electronics Materials Co., Ltd. | 631 |
5 |
| SICPA Holding SA | 914 |
5 |
| Massachusetts Institute of Technology | 10062 |
4 |
| Ecolab USA Inc. | 5496 |
4 |
| Fondazione Istituto Italiano di Tecnologia | 584 |
4 |
| Ohio State Innovation Foundation | 2140 |
4 |
| UTi Limited Partnership | 450 |
4 |
| FUJIFILM Corporation | 29437 |
3 |
| Koninklijke Philips Electronics N.V. | 9542 |
3 |
| Astellas Pharma Inc. | 1087 |
3 |
| Dai-Ichi High Frequency Co., Ltd. | 35 |
3 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1244 |
3 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1213 |
3 |
| JFE Steel Corporation | 6849 |
3 |
| King Faisal University | 918 |
3 |
| Other owners | 235 |