- All sections
- C - Chemistry; metallurgy
- C07D - Heterocyclic compounds
- C07D 209/86 - Carbazoles; Hydrogenated 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: 1436
10-year publication summary
|
89
|
131
|
137
|
118
|
123
|
118
|
86
|
121
|
108
|
39
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Idemitsu Kosan Co., Ltd. | 3995 |
146 |
| Merck Patent GmbH | 5909 |
88 |
| Samsung Display Co., Ltd. | 30585 |
87 |
| Semiconductor Energy Laboratory Co., Ltd. | 10902 |
78 |
| LG Chem, Ltd. | 17205 |
61 |
| Shaanxi Lighte Optoelectronics Material Co., Ltd. | 190 |
40 |
| Samsung SDI Co., Ltd. | 6671 |
37 |
| Duk San Neolux Co., Ltd. | 512 |
35 |
| Kyulux, Inc. | 191 |
35 |
| Rohm and Haas Electronic Materials Korea Ltd. | 546 |
35 |
| Hodogaya Chemical Co., Ltd. | 417 |
25 |
| Kyushu University, National University Corporation | 1572 |
25 |
| Universal Display Corporation | 1678 |
25 |
| Samsung Electronics Co., Ltd. | 131630 |
19 |
| Nippon Steel Chemical & Material Co., Ltd. | 571 |
19 |
| Konica Minolta, Inc. | 8349 |
18 |
| FUJIFILM Corporation | 27102 |
16 |
| Toray Industries, Inc. | 6652 |
16 |
| BASF SE | 19740 |
15 |
| Sumitomo Chemical Company, Limited | 8808 |
15 |
| Other owners | 601 |