- All sections
- C - Chemistry; metallurgy
- C07D - Heterocyclic compounds
- C07D 209/88 - Carbazoles; Hydrogenated carbazoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the ring system
Patent holdings for IPC class C07D 209/88
Total number of patents in this class: 723
10-year publication summary
|
45
|
58
|
59
|
57
|
70
|
59
|
45
|
46
|
56
|
13
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Display Co., Ltd. | 30585 |
58 |
| Shaanxi Lighte Optoelectronics Material Co., Ltd. | 190 |
35 |
| Semiconductor Energy Laboratory Co., Ltd. | 10902 |
31 |
| Merck Patent GmbH | 5909 |
24 |
| Duk San Neolux Co., Ltd. | 512 |
17 |
| LG Chem, Ltd. | 17205 |
16 |
| Bristol-myers Squibb Company | 5080 |
14 |
| Samsung SDI Co., Ltd. | 6671 |
11 |
| Idemitsu Kosan Co., Ltd. | 3995 |
11 |
| Achillion Pharmaceuticals, Inc. | 176 |
10 |
| Rohm and Haas Electronic Materials Korea Ltd. | 546 |
10 |
| Arena Pharmaceuticals, Inc. | 381 |
9 |
| BASF SE | 19740 |
8 |
| Adeka Corporation | 1333 |
8 |
| Hodogaya Chemical Co., Ltd. | 417 |
8 |
| Samsung Electronics Co., Ltd. | 131630 |
7 |
| Kyulux, Inc. | 191 |
7 |
| Nissan Chemical Industries, Ltd. | 1822 |
7 |
| Tosoh Corporation | 1127 |
7 |
| Universal Display Corporation | 1678 |
7 |
| Other owners | 418 |