- 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: 2059
10-year publication summary
|
171
|
147
|
170
|
131
|
129
|
140
|
112
|
105
|
103
|
48
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Idemitsu Kosan Co., Ltd. | 4220 |
57 |
| LG Chem, Ltd. | 17620 |
55 |
| Roquette Freres | 1026 |
54 |
| Archer Daniels Midland Company | 1108 |
52 |
| Merck Patent GmbH | 5830 |
32 |
| FUJIFILM Corporation | 29350 |
32 |
| Gilead Sciences, Inc. | 2037 |
29 |
| Eisai R&D Management Co., Ltd. | 1236 |
26 |
| BASF SE | 20926 |
24 |
| Samsung Display Co., Ltd. | 34641 |
22 |
| Council of Scientific & Industrial Research | 1426 |
22 |
| The Regents of the University of California | 19898 |
21 |
| Samyang Corporation | 402 |
20 |
| Merck Sharp & Dohme LLC | 3750 |
17 |
| LT Materials Co., Ltd. | 405 |
16 |
| Novartis AG | 10847 |
15 |
| Nissan Chemical Industries, Ltd. | 1717 |
15 |
| Purdue Research Foundation | 3601 |
14 |
| SK Innovation Co., Ltd. | 1337 |
14 |
| Centre National de La Recherche Scientifique | 10421 |
13 |
| Other owners | 1509 |