- 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: 1401
10-year publication summary
|
102
|
87
|
111
|
93
|
101
|
125
|
143
|
121
|
131
|
71
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Duk San Neolux Co., Ltd. | 703 |
131 |
| LG Chem, Ltd. | 17929 |
121 |
| Idemitsu Kosan Co., Ltd. | 4241 |
120 |
| Merck Patent GmbH | 5729 |
99 |
| Samsung Display Co., Ltd. | 38676 |
93 |
| Shaanxi Lighte Optoelectronics Material Co., Ltd. | 318 |
77 |
| Tokyo Ohka Kogyo Co., Ltd. | 1563 |
62 |
| FUJIFILM Corporation | 30516 |
51 |
| Universal Display Corporation | 2088 |
38 |
| Shin-Etsu Chemical Co., Ltd. | 6109 |
35 |
| Semiconductor Energy Laboratory Co., Ltd. | 11834 |
31 |
| JSR Corporation | 2558 |
27 |
| LT Materials Co., Ltd. | 444 |
26 |
| Sumitomo Chemical Company, Limited | 8968 |
24 |
| Samsung SDI Co., Ltd. | 10624 |
22 |
| Rohm and Haas Electronic Materials Korea Ltd. | 332 |
21 |
| Doosan Corporation | 431 |
16 |
| Canon Kabushiki Kaisha | 7341 |
15 |
| Canon Inc. | 43869 |
13 |
| UDC Ireland Limited | 508 |
13 |
| Other owners | 366 |