- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 209/86 - CarbazolesHydrogenated carbazoles with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the ring system
Patent holdings for IPC class C07D 209/86
Total number of patents in this class: 1551
10-year publication summary
|
137
|
119
|
123
|
119
|
87
|
126
|
110
|
106
|
69
|
25
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Idemitsu Kosan Co., Ltd. | 4219 |
151 |
| Samsung Display Co., Ltd. | 37933 |
102 |
| Merck Patent GmbH | 5663 |
92 |
| LG Chem, Ltd. | 17840 |
77 |
| Semiconductor Energy Laboratory Co., Ltd. | 11688 |
68 |
| Shaanxi Lighte Optoelectronics Material Co., Ltd. | 309 |
52 |
| Samsung SDI Co., Ltd. | 9902 |
41 |
| Duk San Neolux Co., Ltd. | 686 |
41 |
| Kyulux, Inc. | 243 |
39 |
| Universal Display Corporation | 2038 |
29 |
| Hodogaya Chemical Co., Ltd. | 426 |
26 |
| Kyushu University, National University Corporation | 1695 |
26 |
| Rohm and Haas Electronic Materials Korea Ltd. | 332 |
26 |
| LT Materials Co., Ltd. | 438 |
26 |
| FUJIFILM Corporation | 30277 |
22 |
| Nippon Steel Chemical & Material Co., Ltd. | 701 |
22 |
| UDC Ireland Limited | 514 |
19 |
| Samsung Electronics Co., Ltd. | 154120 |
17 |
| Konica Minolta, Inc. | 9032 |
17 |
| Toray Industries, Inc. | 7045 |
16 |
| Other owners | 642 |