- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 67/52 - SeparationPurificationStabilisationUse of additives by change in the physical state, e.g. crystallisation
Patent holdings for IPC class C07C 67/52
Total number of patents in this class: 169
10-year publication summary
|
9
|
9
|
8
|
8
|
11
|
20
|
15
|
23
|
15
|
12
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17956 |
12 |
| Jeplan, Inc. | 41 |
8 |
| SK Chemicals Co., Ltd. | 647 |
7 |
| Kaneka Corporation | 4745 |
5 |
| IFP Energies Nouvelles | 3110 |
5 |
| Sichuan Jiuzhang Biological Science and Technology Co., Ltd | 70 |
5 |
| Ioniqa Technologies B.V. | 43 |
4 |
| Poseidon Plastics Limited | 25 |
4 |
| Chempet SRL | 8 |
4 |
| Central Glass Company, Limited | 1298 |
3 |
| Honshu Chemical Industry Co., Ltd. | 193 |
3 |
| Theaprin Pharmaceuticals Inc. | 32 |
3 |
| Zeon Corporation | 4167 |
3 |
| Shintech Corporation | 8 |
3 |
| Mitsubishi Chemical UK Limited | 85 |
3 |
| Cerecin Australia Pty Limited | 7 |
3 |
| Idemitsu Kosan Co., Ltd. | 4263 |
2 |
| Mitsubishi Chemical Corporation | 4738 |
2 |
| Arkema France | 4250 |
2 |
| Enzychem Lifesciences Corporation | 61 |
2 |
| Other owners | 86 |