- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 307/77 - Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
Patent holdings for IPC class C07D 307/77
Total number of patents in this class: 577
10-year publication summary
|
52
|
48
|
27
|
29
|
20
|
52
|
34
|
57
|
51
|
23
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Idemitsu Kosan Co., Ltd. | 4263 |
75 |
| LG Chem, Ltd. | 17956 |
44 |
| Semiconductor Energy Laboratory Co., Ltd. | 11873 |
25 |
| LT Materials Co., Ltd. | 445 |
22 |
| Samsung Display Co., Ltd. | 38914 |
17 |
| SFC Co., Ltd. | 336 |
16 |
| Duk San Neolux Co., Ltd. | 703 |
14 |
| Merck Patent GmbH | 5739 |
11 |
| Samsung SDI Co., Ltd. | 10745 |
9 |
| Shaanxi Lighte Optoelectronics Material Co., Ltd. | 324 |
9 |
| UDC Ireland Limited | 505 |
8 |
| JSR Corporation | 2551 |
7 |
| DuPont Specialty Materials Korea Ltd. | 306 |
6 |
| Samsung Electronics Co., Ltd. | 158605 |
5 |
| LG Display Co., Ltd. | 15018 |
5 |
| Sumitomo Chemical Company, Limited | 8969 |
5 |
| Shin-Etsu Chemical Co., Ltd. | 6127 |
5 |
| Korea Research Institute of Chemical Technology | 1485 |
5 |
| Siga Technologies, Inc. | 82 |
5 |
| Novartis AG | 10175 |
4 |
| Other owners | 280 |