- 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: 1519
10-year publication summary
|
130
|
135
|
116
|
120
|
117
|
87
|
122
|
109
|
104
|
57
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Idemitsu Kosan Co., Ltd. | 4237 |
148 |
| Merck Patent GmbH | 5767 |
98 |
| Samsung Display Co., Ltd. | 35374 |
97 |
| LG Chem, Ltd. | 17676 |
72 |
| Semiconductor Energy Laboratory Co., Ltd. | 11471 |
70 |
| Shaanxi Lighte Optoelectronics Material Co., Ltd. | 274 |
52 |
| Duk San Neolux Co., Ltd. | 659 |
41 |
| Samsung SDI Co., Ltd. | 8622 |
40 |
| Kyulux, Inc. | 234 |
37 |
| Universal Display Corporation | 1936 |
28 |
| Hodogaya Chemical Co., Ltd. | 434 |
27 |
| Kyushu University, National University Corporation | 1661 |
26 |
| Rohm and Haas Electronic Materials Korea Ltd. | 330 |
26 |
| LT Materials Co., Ltd. | 411 |
23 |
| Nippon Steel Chemical & Material Co., Ltd. | 666 |
22 |
| FUJIFILM Corporation | 29696 |
20 |
| Samsung Electronics Co., Ltd. | 147787 |
19 |
| Konica Minolta, Inc. | 8801 |
17 |
| Toray Industries, Inc. | 7000 |
16 |
| Canon Inc. | 40509 |
15 |
| Other owners | 625 |