- 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: 615
10-year publication summary
|
11
|
27
|
36
|
64
|
68
|
59
|
73
|
78
|
78
|
48
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Chemical Corporation | 4724 |
30 |
| LG Energy Solution, Ltd. | 19184 |
21 |
| LG Chem, Ltd. | 17937 |
18 |
| JFE Chemical Corporation | 121 |
16 |
| Research Institute of Industrial Science & Technology | 569 |
16 |
| Contemporary Amperex Technology (Hong Kong) Limited | 4023 |
15 |
| Kaneka Corporation | 4725 |
14 |
| JFE Steel Corporation | 7574 |
14 |
| BTR New Material Group Co., Ltd. | 291 |
14 |
| Showa Denko K.K. | 2066 |
9 |
| Samsung SDI Co., Ltd. | 10710 |
8 |
| Applied Graphene Materials UK Limited | 26 |
8 |
| POSCO | 2140 |
8 |
| POSCO Holdings Inc. | 693 |
8 |
| Sekisui Chemical Co., Ltd. | 3626 |
7 |
| Panasonic Intellectual Property Management Co., Ltd. | 34145 |
6 |
| Imerys Graphite & Carbon Switzerland Ltd. | 30 |
6 |
| NETZSCH Trockenmahltechnik GmbH | 42 |
6 |
| University-industry Cooperation Group of Kyung Hee University | 1343 |
6 |
| Imertech SAS | 245 |
6 |
| Other owners | 379 |