- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 209/64 - Naphtho [c] pyrrolesHydrogenated naphtho [c] pyrroles with an oxygen atom in position 1
Patent holdings for IPC class C07D 209/64
Total number of patents in this class: 9
10-year publication summary
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Glaxo Group Limited | 4288 |
4 |
| BASF SE | 21127 |
1 |
| LG Display Co., Ltd. | 14229 |
1 |
| Merck Frosst Canada Ltd. | 57 |
1 |
| BASF (China) Co., Ltd. | 869 |
1 |
| Merck Sharp & Dohme LLC | 3702 |
1 |
| Other owners | 0 |