- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 493/04 - Ortho-condensed systems
Patent holdings for IPC class C07D 493/04
Total number of patents in this class: 2098
10-year publication summary
|
147
|
171
|
131
|
129
|
141
|
114
|
107
|
106
|
89
|
67
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Idemitsu Kosan Co., Ltd. | 4257 |
59 |
| LG Chem, Ltd. | 17950 |
57 |
| Archer Daniels Midland Company | 1075 |
52 |
| Roquette Freres | 1058 |
51 |
| FUJIFILM Corporation | 30594 |
38 |
| Merck Patent GmbH | 5735 |
33 |
| Eisai R&D Management Co., Ltd. | 1167 |
26 |
| Gilead Sciences, Inc. | 2236 |
25 |
| Samsung Display Co., Ltd. | 38817 |
23 |
| BASF SE | 21306 |
23 |
| The Regents of the University of California | 20815 |
21 |
| Council of Scientific & Industrial Research | 1446 |
21 |
| Samyang Corporation | 427 |
20 |
| LT Materials Co., Ltd. | 445 |
17 |
| Merck Sharp & Dohme LLC | 3737 |
17 |
| Purdue Research Foundation | 3937 |
15 |
| Semiconductor Energy Laboratory Co., Ltd. | 11855 |
14 |
| SK Innovation Co., Ltd. | 1489 |
14 |
| Novartis AG | 10173 |
13 |
| Janssen Pharmaceutica N.V. | 3160 |
13 |
| Other owners | 1546 |