- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 32/05 - Preparation or purification of carbon not covered by groups , , ,
Patent holdings for IPC class C01B 32/05
Total number of patents in this class: 2208
10-year publication summary
|
131
|
127
|
138
|
155
|
182
|
211
|
214
|
275
|
317
|
216
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Guangdong Brunp Recycling Technology Co., Ltd | 1269 |
38 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1226 |
37 |
| Kuraray Co., Ltd. | 3601 |
37 |
| LG Energy Solution, Ltd. | 19305 |
35 |
| LG Chem, Ltd. | 17956 |
33 |
| Stora Enso Oyj | 1660 |
24 |
| Toray Industries, Inc. | 7143 |
22 |
| Carbon Technology Holdings, LLC | 234 |
21 |
| BASF SE | 21320 |
20 |
| Group14 Technologies, Inc. | 121 |
20 |
| Monolith Materials, Inc. | 124 |
20 |
| Nisshinbo Holdings Inc. | 375 |
19 |
| Hanwha Solutions Corporation | 1197 |
18 |
| Carbon Holdings Intellectual Properties, LLC | 68 |
16 |
| Korea Advanced Institute of Science and Technology | 4694 |
15 |
| BTR New Material Group Co., Ltd. | 291 |
15 |
| Integrated Graphene Holding Limited | 22 |
13 |
| Contemporary Amperex Technology (Hong Kong) Limited | 4028 |
13 |
| Contemporary Amperex Technology Co., Limited | 10270 |
12 |
| Nippon Steel Chemical & Material Co., Ltd. | 738 |
12 |
| Other owners | 1768 |