- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 209/88 - CarbazolesHydrogenated 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: 755
10-year publication summary
|
58
|
59
|
57
|
70
|
59
|
46
|
49
|
59
|
45
|
33
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Display Co., Ltd. | 34696 |
67 |
| Shaanxi Lighte Optoelectronics Material Co., Ltd. | 259 |
44 |
| Merck Patent GmbH | 5831 |
25 |
| Semiconductor Energy Laboratory Co., Ltd. | 11403 |
23 |
| Duk San Neolux Co., Ltd. | 651 |
19 |
| LG Chem, Ltd. | 17632 |
17 |
| Bristol-myers Squibb Company | 4898 |
13 |
| Idemitsu Kosan Co., Ltd. | 4219 |
12 |
| Samsung SDI Co., Ltd. | 8319 |
10 |
| Achillion Pharmaceuticals, Inc. | 164 |
10 |
| Arena Pharmaceuticals, Inc. | 366 |
10 |
| Universal Display Corporation | 1909 |
9 |
| BASF SE | 20933 |
8 |
| Adeka Corporation | 1362 |
8 |
| Hodogaya Chemical Co., Ltd. | 434 |
8 |
| Rohm and Haas Electronic Materials Korea Ltd. | 330 |
8 |
| Tosoh Corporation | 1287 |
8 |
| Samsung Electronics Co., Ltd. | 146092 |
7 |
| FUJIFILM Corporation | 29367 |
7 |
| Kyulux, Inc. | 234 |
7 |
| Other owners | 435 |