- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 493/00 - Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
Patent holdings for IPC class C07D 493/00
Total number of patents in this class: 192
10-year publication summary
|
7
|
6
|
9
|
3
|
6
|
25
|
7
|
6
|
14
|
13
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Merck Patent GmbH | 5735 |
6 |
| Medshine Discovery Inc. | 589 |
6 |
| Merck Sharp & Dohme Corp. | 2183 |
5 |
| Duke University | 3181 |
5 |
| Archer Daniels Midland Company | 1075 |
5 |
| Immunolight, LLC | 212 |
5 |
| Idemitsu Kosan Co., Ltd. | 4257 |
4 |
| Samsung SDI Co., Ltd. | 10719 |
3 |
| Agriculture Victoria Services Pty Ltd | 158 |
3 |
| Chia Tai Tianqing Pharmaceutical Group Co., Ltd. | 779 |
3 |
| Roquette Freres | 1058 |
3 |
| Shanghai Hengrui Pharmaceutical Co., Ltd. | 719 |
3 |
| Wuhan Tianma Micro-Electronics Co., Ltd. | 1314 |
3 |
| Ningbo Lumilan Advanced Materials Co., Ltd. | 41 |
3 |
| LT Materials Co., Ltd. | 445 |
3 |
| Shaanxi Lighte Optoelectronics Material Co., Ltd. | 323 |
3 |
| Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch | 675 |
3 |
| Merck Sharp & Dohme LLC | 3737 |
3 |
| DuPont Specialty Materials Korea Ltd. | 305 |
3 |
| LG Chem, Ltd. | 17950 |
2 |
| Other owners | 118 |