- All sections
- C - Chemistrymetallurgy
- C01F - Compounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare earth metals
- C01F 7/021 - After-treatment of oxides or hydroxides
Patent holdings for IPC class C01F 7/021
Total number of patents in this class: 71
10-year publication summary
|
0
|
1
|
2
|
1
|
3
|
5
|
15
|
12
|
20
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Denka Company Limited | 2533 |
6 |
| Sumitomo Chemical Company, Limited | 9009 |
5 |
| Sasol (USA) Corporation | 71 |
4 |
| Samsung SDI Co., Ltd. | 8048 |
3 |
| Nippon Steel Chemical & Material Co., Ltd. | 638 |
3 |
| Corning Incorporated | 10240 |
2 |
| Admatechs Company Limited | 77 |
2 |
| Taiyo Nippon Sanso Corporation | 366 |
2 |
| Tokyo Institute of Technology | 1384 |
2 |
| Aluminum Technologies, LLC | 6 |
2 |
| Karbolution Inc. | 2 |
2 |
| Apple Inc. | 54479 |
1 |
| LG Chem, Ltd. | 17561 |
1 |
| The Regents of the University of California | 19812 |
1 |
| FUJIFILM Corporation | 29228 |
1 |
| TDK Corporation | 6674 |
1 |
| Gem Co., Ltd. | 213 |
1 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1185 |
1 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1153 |
1 |
| Ishihara Sangyo Kaisha, Ltd. | 656 |
1 |
| Other owners | 29 |