- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 39/225 - Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic, containing only six-membered aromatic rings as cyclic part, with unsaturation outside the rings with at least one hydroxy group on a condensed ring system
Patent holdings for IPC class C07C 39/225
Total number of patents in this class: 24
10-year publication summary
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1
|
2
|
1
|
6
|
2
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4
|
1
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0
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0
|
0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Gas Chemical Company, Inc. | 3663 |
5 |
| Epizon Pharma, Inc. | 35 |
4 |
| Cheil Industries Inc. | 802 |
2 |
| DIC Corporation | 4008 |
2 |
| GNOSIS S.p.A. | 105 |
2 |
| Merck Patent GmbH | 5772 |
1 |
| Samsung SDI Co., Ltd. | 11065 |
1 |
| Olympus Corporation | 12891 |
1 |
| JSR Corporation | 2565 |
1 |
| Air Water Inc. | 163 |
1 |
| Kappa Bioscience AS | 41 |
1 |
| Shanghai Institute of Materia Medica, Chinese Academy of Sciences | 886 |
1 |
| Shinshu University | 493 |
1 |
| Unigen, Inc. | 103 |
1 |
| Other owners | 0 |