- 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: 741
10-year publication summary
|
20
|
52
|
61
|
54
|
55
|
52
|
77
|
128
|
102
|
114
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kaneka Corporation | 4829 |
36 |
| PI Advanced Materials Co., Ltd. | 235 |
20 |
| Contemporary Amperex Technology (Hong Kong) Limited | 4048 |
18 |
| SGL Carbon SE | 412 |
15 |
| Carbon Holdings Intellectual Properties, LLC | 68 |
14 |
| Contemporary Amperex Technology Co., Limited | 10616 |
12 |
| Nippon Kornmeyer Carbon Group GmbH | 24 |
12 |
| LG Energy Solution, Ltd. | 19725 |
12 |
| POSCO Future M Co., Ltd. | 150 |
12 |
| ExxonMobil Technology and Engineering Company | 1425 |
10 |
| BTR New Material Group Co., Ltd. | 296 |
9 |
| Carbonscape Limited | 26 |
8 |
| JFE Chemical Corporation | 124 |
8 |
| Resonac Corporation | 3761 |
8 |
| Showa Denko K.K. | 2050 |
7 |
| Global Graphene Group, Inc. | 249 |
7 |
| Hazer Group Ltd | 20 |
7 |
| Research Institute of Industrial Science & Technology | 574 |
7 |
| ENEOS Corporation | 722 |
7 |
| Ningde Xicheng Technology Co., Ltd. | 12 |
7 |
| Other owners | 505 |