- 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: 1508
10-year publication summary
|
132
|
137
|
119
|
123
|
118
|
87
|
122
|
108
|
105
|
46
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Idemitsu Kosan Co., Ltd. | 4219 |
148 |
| Merck Patent GmbH | 5831 |
96 |
| Samsung Display Co., Ltd. | 34696 |
94 |
| Semiconductor Energy Laboratory Co., Ltd. | 11403 |
73 |
| LG Chem, Ltd. | 17632 |
72 |
| Shaanxi Lighte Optoelectronics Material Co., Ltd. | 259 |
51 |
| Duk San Neolux Co., Ltd. | 651 |
41 |
| Samsung SDI Co., Ltd. | 8319 |
40 |
| Kyulux, Inc. | 234 |
37 |
| Universal Display Corporation | 1909 |
28 |
| Hodogaya Chemical Co., Ltd. | 434 |
27 |
| Kyushu University, National University Corporation | 1657 |
26 |
| Rohm and Haas Electronic Materials Korea Ltd. | 330 |
26 |
| LT Materials Co., Ltd. | 406 |
23 |
| Nippon Steel Chemical & Material Co., Ltd. | 647 |
22 |
| Samsung Electronics Co., Ltd. | 146092 |
20 |
| FUJIFILM Corporation | 29367 |
18 |
| Konica Minolta, Inc. | 8729 |
17 |
| Toray Industries, Inc. | 6936 |
16 |
| Canon Inc. | 39888 |
15 |
| Other owners | 618 |