- All sections
- C - Chemistry; metallurgy
- C01B - Non-metallic elements; compounds thereof
- C01B 32/20 - Graphite
Patent holdings for IPC class C01B 32/20
Total number of patents in this class: 387
10-year publication summary
18
|
28
|
53
|
80
|
69
|
45
|
41
|
27
|
31
|
9
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Kaneka Corporation | 4445 |
14 |
Imerys Graphite & Carbon Switzerland Ltd. | 30 |
11 |
Carbon Holdings Intellectual Properties, LLC | 41 |
10 |
Global Graphene Group, Inc. | 246 |
8 |
Resonac Corporation | 2233 |
8 |
Pirelli Tyre S.p.A. | 1832 |
7 |
NEC Corporation | 32703 |
6 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
6 |
Politecnico di Milano | 790 |
6 |
NeoGraf Solutions, LLC | 97 |
6 |
Baker Hughes Incorporated | 5689 |
5 |
Graphene Platform Corporation | 25 |
5 |
JFE Chemical Corporation | 116 |
5 |
SKC Co., Ltd. | 311 |
5 |
Samsung SDI Co., Ltd. | 6671 |
4 |
Showa Denko K.K. | 2539 |
4 |
JFE Steel Corporation | 6067 |
4 |
Lyten, Inc. | 238 |
4 |
Ningde Amperex Technology Limited | 1512 |
4 |
Saudi Arabian Oil Company | 11322 |
4 |
Other owners | 261 |