- 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: 554
10-year publication summary
|
49
|
48
|
27
|
27
|
20
|
51
|
34
|
56
|
49
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Idemitsu Kosan Co., Ltd. | 4223 |
75 |
| LG Chem, Ltd. | 17778 |
42 |
| Semiconductor Energy Laboratory Co., Ltd. | 11643 |
24 |
| LT Materials Co., Ltd. | 427 |
20 |
| Samsung Display Co., Ltd. | 37493 |
17 |
| SFC Co., Ltd. | 330 |
16 |
| Duk San Neolux Co., Ltd. | 676 |
13 |
| Merck Patent GmbH | 5743 |
11 |
| Samsung SDI Co., Ltd. | 9546 |
9 |
| UDC Ireland Limited | 464 |
8 |
| Shaanxi Lighte Optoelectronics Material Co., Ltd. | 304 |
8 |
| JSR Corporation | 2556 |
7 |
| DuPont Specialty Materials Korea Ltd. | 288 |
6 |
| Samsung Electronics Co., Ltd. | 152534 |
5 |
| LG Display Co., Ltd. | 14188 |
5 |
| Sumitomo Chemical Company, Limited | 9057 |
5 |
| Shin-Etsu Chemical Co., Ltd. | 5893 |
5 |
| Korea Research Institute of Chemical Technology | 1438 |
5 |
| Siga Technologies, Inc. | 83 |
5 |
| Novartis AG | 10467 |
4 |
| Other owners | 264 |