- 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: 1747
10-year publication summary
41
|
131
|
127
|
138
|
155
|
182
|
208
|
214
|
264
|
135
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Guangdong Brunp Recycling Technology Co., Ltd | 1157 |
37 |
Hunan Brunp Recycling Technology Co., Ltd. | 1125 |
37 |
LG Chem, Ltd. | 17526 |
30 |
Kuraray Co., Ltd. | 3489 |
30 |
LG Energy Solution, Ltd. | 14166 |
23 |
Toray Industries, Inc. | 6865 |
20 |
Monolith Materials, Inc. | 126 |
19 |
Group14 Technologies, Inc. | 103 |
17 |
Nisshinbo Holdings Inc. | 365 |
17 |
Carbon Technology Holdings, LLC | 207 |
17 |
Stora Enso Oyj | 1597 |
15 |
Carbon Holdings Intellectual Properties, LLC | 59 |
15 |
Hunan Brunp EV Recycling Co., Ltd. | 370 |
12 |
Contemporary Amperex Technology (Hong Kong) Limited | 3312 |
12 |
Sumitomo Electric Industries, Ltd. | 15277 |
10 |
Showa Denko K.K. | 2281 |
10 |
Asahi Kasei Kabushiki Kaisha | 2633 |
10 |
Kureha Corporation | 1018 |
10 |
BASF SE | 20694 |
9 |
The Regents of the University of California | 19780 |
9 |
Other owners | 1388 |