- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 333/76 - Dibenzothiophenes
Patent holdings for IPC class C07D 333/76
Total number of patents in this class: 1317
10-year publication summary
|
85
|
102
|
87
|
111
|
94
|
100
|
123
|
143
|
121
|
115
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Idemitsu Kosan Co., Ltd. | 4223 |
128 |
| Duk San Neolux Co., Ltd. | 668 |
126 |
| LG Chem, Ltd. | 17706 |
120 |
| Merck Patent GmbH | 5752 |
97 |
| Samsung Display Co., Ltd. | 36317 |
90 |
| Shaanxi Lighte Optoelectronics Material Co., Ltd. | 295 |
76 |
| Tokyo Ohka Kogyo Co., Ltd. | 1547 |
52 |
| Universal Display Corporation | 1968 |
38 |
| FUJIFILM Corporation | 29839 |
31 |
| Shin-Etsu Chemical Co., Ltd. | 5795 |
30 |
| Semiconductor Energy Laboratory Co., Ltd. | 11537 |
27 |
| LT Materials Co., Ltd. | 414 |
25 |
| Sumitomo Chemical Company, Limited | 9109 |
24 |
| Samsung SDI Co., Ltd. | 8901 |
21 |
| Rohm and Haas Electronic Materials Korea Ltd. | 331 |
21 |
| Doosan Corporation | 435 |
16 |
| Canon Kabushiki Kaisha | 7154 |
15 |
| JSR Corporation | 2542 |
14 |
| Canon Inc. | 41151 |
13 |
| Crius Technology Group, Inc. | 22 |
11 |
| Other owners | 342 |