- All sections
- C - Chemistry; metallurgy
- 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: 174
10-year publication summary
|
8
|
14
|
16
|
22
|
9
|
12
|
9
|
13
|
14
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Idemitsu Kosan Co., Ltd. | 3995 |
20 |
| LG Chem, Ltd. | 17205 |
14 |
| Samsung Display Co., Ltd. | 30585 |
12 |
| Merck Patent GmbH | 5909 |
12 |
| Semiconductor Energy Laboratory Co., Ltd. | 10902 |
10 |
| Duk San Neolux Co., Ltd. | 512 |
7 |
| Samsung SDI Co., Ltd. | 6671 |
5 |
| Arena Pharmaceuticals, Inc. | 381 |
5 |
| BASF SE | 19740 |
4 |
| GE Healthcare Limited | 711 |
4 |
| Hodogaya Chemical Co., Ltd. | 417 |
3 |
| SFC Co., Ltd. | 277 |
3 |
| UDC Ireland Limited | 496 |
3 |
| Janssen Pharmaceutica N.V. | 3839 |
2 |
| Adeka Corporation | 1333 |
2 |
| Dainichiseika Color & Chemicals Mfg. Co., Ltd. | 354 |
2 |
| Dana-Farber Cancer Institute, Inc. | 2455 |
2 |
| Luminescence Technology Corporation | 34 |
2 |
| Rohm and Haas Electronic Materials Korea Ltd. | 37 |
2 |
| University of Virginia Patent Foundation | 1470 |
2 |
| Other owners | 58 |