- All sections
- C - Chemistry; metallurgy
- 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: 482
10-year publication summary
|
32
|
35
|
52
|
48
|
27
|
29
|
20
|
51
|
34
|
16
|
| 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 |
53 |
| LG Chem, Ltd. | 17205 |
26 |
| Semiconductor Energy Laboratory Co., Ltd. | 10902 |
21 |
| Samsung Display Co., Ltd. | 30585 |
17 |
| SFC Co., Ltd. | 277 |
15 |
| LT Materials Co., Ltd. | 312 |
14 |
| Merck Patent GmbH | 5909 |
12 |
| Duk San Neolux Co., Ltd. | 512 |
10 |
| Samsung SDI Co., Ltd. | 6671 |
9 |
| UDC Ireland Limited | 496 |
8 |
| JSR Corporation | 2476 |
6 |
| Takeda Pharmaceutical Company Limited | 2961 |
6 |
| Samsung Electronics Co., Ltd. | 131630 |
5 |
| LG Display Co., Ltd. | 11907 |
5 |
| Sumitomo Chemical Company, Limited | 8808 |
5 |
| Shin-Etsu Chemical Co., Ltd. | 5132 |
5 |
| President and Fellows of Harvard College | 5792 |
5 |
| Siga Technologies, Inc. | 82 |
5 |
| Shaanxi Lighte Optoelectronics Material Co., Ltd. | 190 |
5 |
| The Trustees of Columbia University in the City of New York | 3440 |
4 |
| Other owners | 246 |