- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 209/80 - [b, c]- or [b, d]-condensed
Patent holdings for IPC class C07D 209/80
Total number of patents in this class: 183
10-year publication summary
|
14
|
16
|
23
|
9
|
12
|
8
|
13
|
14
|
11
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Idemitsu Kosan Co., Ltd. | 4222 |
21 |
| LG Chem, Ltd. | 17643 |
14 |
| Samsung Display Co., Ltd. | 35100 |
12 |
| Merck Patent GmbH | 5820 |
11 |
| Semiconductor Energy Laboratory Co., Ltd. | 11471 |
10 |
| Duk San Neolux Co., Ltd. | 656 |
7 |
| Samsung SDI Co., Ltd. | 8494 |
6 |
| Shaanxi Lighte Optoelectronics Material Co., Ltd. | 264 |
6 |
| Arena Pharmaceuticals, Inc. | 364 |
5 |
| GE Healthcare Limited | 664 |
4 |
| BASF SE | 20961 |
3 |
| Hodogaya Chemical Co., Ltd. | 433 |
3 |
| SFC Co., Ltd. | 321 |
3 |
| Tosoh Corporation | 1310 |
3 |
| UDC Ireland Limited | 474 |
3 |
| DuPont Specialty Materials Korea Ltd. | 290 |
3 |
| Samsung Electronics Co., Ltd. | 147334 |
2 |
| FUJIFILM Corporation | 29506 |
2 |
| Adeka Corporation | 1367 |
2 |
| Chugai Seiyaku Kabushiki Kaisha | 1366 |
2 |
| Other owners | 61 |