- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 32/21 - After-treatment
Patent holdings for IPC class C01B 32/21
Total number of patents in this class: 582
10-year publication summary
|
9
|
27
|
36
|
63
|
64
|
57
|
63
|
70
|
71
|
18
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Chemical Corporation | 4687 |
30 |
| LG Energy Solution, Ltd. | 17308 |
21 |
| LG Chem, Ltd. | 17805 |
17 |
| JFE Chemical Corporation | 123 |
16 |
| Research Institute of Industrial Science & Technology | 518 |
16 |
| Kaneka Corporation | 4635 |
14 |
| JFE Steel Corporation | 7308 |
14 |
| BTR New Material Group Co., Ltd. | 258 |
13 |
| Contemporary Amperex Technology (Hong Kong) Limited | 3911 |
13 |
| Showa Denko K.K. | 2110 |
9 |
| Applied Graphene Materials UK Limited | 26 |
8 |
| POSCO | 2155 |
8 |
| POSCO Holdings Inc. | 367 |
8 |
| Sekisui Chemical Co., Ltd. | 3577 |
7 |
| Samsung SDI Co., Ltd. | 9658 |
6 |
| Panasonic Intellectual Property Management Co., Ltd. | 33401 |
6 |
| University-industry Cooperation Group of Kyung Hee University | 1275 |
6 |
| POSCO Future M Co., Ltd. | 129 |
6 |
| Huawei Technologies Co., Ltd. | 119637 |
5 |
| Imerys Graphite & Carbon Switzerland Ltd. | 29 |
5 |
| Other owners | 354 |