- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 63/42 - Polycyclic acids with carboxyl groups bound to condensed ring systems containing three or more rings
Patent holdings for IPC class C07C 63/42
Total number of patents in this class: 3
10-year publication summary
|
0
|
0
|
0
|
1
|
0
|
1
|
0
|
0
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tokyo Electron Limited | 12712 |
1 |
| Northwestern University | 3389 |
1 |
| Tokyo Ohka Kogyo Co., Ltd. | 1542 |
1 |
| Other owners | 0 |