- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 32/205 - Preparation
Patent holdings for IPC class C01B 32/205
Total number of patents in this class: 541
10-year publication summary
|
3
|
20
|
52
|
61
|
54
|
55
|
52
|
77
|
120
|
43
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kaneka Corporation | 4486 |
36 |
| PI Advanced Materials Co., Ltd. | 197 |
19 |
| Contemporary Amperex Technology (Hong Kong) Limited | 3376 |
15 |
| Carbon Holdings Intellectual Properties, LLC | 59 |
13 |
| SGL Carbon SE | 387 |
12 |
| LG Energy Solution, Ltd. | 14424 |
10 |
| Nippon Kornmeyer Carbon Group GmbH | 20 |
9 |
| Carbonscape Limited | 26 |
8 |
| Contemporary Amperex Technology Co., Limited | 6343 |
8 |
| JFE Chemical Corporation | 120 |
8 |
| Showa Denko K.K. | 2274 |
7 |
| Global Graphene Group, Inc. | 247 |
7 |
| Research Institute of Industrial Science & Technology | 475 |
7 |
| ENEOS Corporation | 603 |
7 |
| POSCO Future M Co., Ltd. | 72 |
7 |
| Ningde Xicheng Technology Co., Ltd. | 12 |
7 |
| Panasonic Intellectual Property Management Co., Ltd. | 30967 |
6 |
| Mitsubishi Chemical Corporation | 4485 |
6 |
| Hazer Group Ltd | 14 |
5 |
| Nippon Electrode Company, Ltd. | 15 |
5 |
| Other owners | 339 |