- 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: 2072
10-year publication summary
|
157
|
139
|
160
|
122
|
119
|
129
|
102
|
100
|
99
|
80
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17706 |
57 |
| Idemitsu Kosan Co., Ltd. | 4223 |
57 |
| Roquette Freres | 1027 |
54 |
| Archer Daniels Midland Company | 1129 |
52 |
| FUJIFILM Corporation | 29839 |
35 |
| Merck Patent GmbH | 5752 |
32 |
| Gilead Sciences, Inc. | 2106 |
30 |
| Eisai R&D Management Co., Ltd. | 1204 |
26 |
| BASF SE | 21098 |
24 |
| Samsung Display Co., Ltd. | 36317 |
23 |
| Council of Scientific & Industrial Research | 1426 |
22 |
| Samyang Corporation | 410 |
20 |
| The Regents of the University of California | 20303 |
19 |
| Merck Sharp & Dohme LLC | 3732 |
17 |
| LT Materials Co., Ltd. | 414 |
16 |
| Novartis AG | 10612 |
15 |
| Purdue Research Foundation | 3732 |
15 |
| Nissan Chemical Industries, Ltd. | 1697 |
15 |
| SK Innovation Co., Ltd. | 1382 |
14 |
| Centre National de La Recherche Scientifique | 10706 |
13 |
| Other owners | 1516 |