- 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: 2014
10-year publication summary
|
120
|
122
|
130
|
149
|
171
|
193
|
192
|
258
|
290
|
44
|
| 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 | 1248 |
37 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1217 |
37 |
| Kuraray Co., Ltd. | 3564 |
34 |
| LG Chem, Ltd. | 17744 |
30 |
| LG Energy Solution, Ltd. | 16647 |
28 |
| Stora Enso Oyj | 1646 |
21 |
| Carbon Technology Holdings, LLC | 225 |
21 |
| Toray Industries, Inc. | 7018 |
20 |
| Monolith Materials, Inc. | 124 |
20 |
| Nisshinbo Holdings Inc. | 375 |
19 |
| Group14 Technologies, Inc. | 115 |
18 |
| BASF SE | 21149 |
16 |
| Carbon Holdings Intellectual Properties, LLC | 63 |
16 |
| Hanwha Solutions Corporation | 979 |
16 |
| Korea Advanced Institute of Science and Technology | 4513 |
14 |
| Contemporary Amperex Technology (Hong Kong) Limited | 3887 |
13 |
| BTR New Material Group Co., Ltd. | 254 |
12 |
| Rain Carbon Germany GmbH | 57 |
12 |
| Hunan Brunp EV Recycling Co., Ltd. | 375 |
12 |
| The Regents of the University of California | 20366 |
11 |
| Other owners | 1607 |