- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 32/378 - Purification
Patent holdings for IPC class C01B 32/378
Total number of patents in this class: 29
10-year publication summary
|
0
|
1
|
1
|
1
|
3
|
5
|
0
|
7
|
7
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kuraray Co., Ltd. | 3491 |
7 |
| Tokai Carbon Korea Co., Ltd. | 53 |
3 |
| CyDex Pharmaceuticals, Inc. | 109 |
2 |
| Sony Corporation | 31138 |
1 |
| Anhui University of Science and Technology | 186 |
1 |
| Arizona Board of Regents on behalf of Arizona State University | 2587 |
1 |
| Consejo Nacional de Investigaciones Cientificas y Tecnicas (conicet) | 299 |
1 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1191 |
1 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1159 |
1 |
| Ingevity South Carolina, LLC | 239 |
1 |
| Titan Clean Energy Projects Corporation | 17 |
1 |
| Universidad Nacional de Cordoba | 15 |
1 |
| YPF Tecnologia SA | 43 |
1 |
| Nextleaf Solutions Ltd. | 39 |
1 |
| Guangxi Academy of Sciences | 8 |
1 |
| Natural Nanotech Pty Ltd | 1 |
1 |
| Andromeda IP Pty Ltd | 2 |
1 |
| Anhui Huobao Nano Technology Co., Ltd | 2 |
1 |
| John Wright Coulter Black | 1 |
1 |
| Russel Mark Adams | 1 |
1 |
| Other owners | 0 |