- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 65/15 - Compounds having carboxyl groups bound to carbon atoms of six-membered aromatic rings and containing any of the groups OH, O-metal, —CHO, keto, ether, groups, groups, or groups containing hydroxy or O-metal groups polycyclic with carboxyl groups on a condensed ring system containing more than two rings
Patent holdings for IPC class C07C 65/15
Total number of patents in this class: 8
10-year publication summary
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2
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Zentek Ltd. | 21 |
2 |
| Toyota Motor Corporation | 32788 |
1 |
| Board of Regents of the University of Nebraska | 766 |
1 |
| Osaka University | 3383 |
1 |
| Tokyo Ohka Kogyo Co., Ltd. | 1549 |
1 |
| The University of Bristol | 254 |
1 |
| Hainan Medical University | 14 |
1 |
| Other owners | 0 |