- All sections
- C - Chemistry; metallurgy
- C07D - Heterocyclic compounds
- C07D 493/04 - Ortho-condensed systems
Patent holdings for IPC class C07D 493/04
Total number of patents in this class: 2057
10-year publication summary
170
|
147
|
170
|
131
|
129
|
139
|
112
|
103
|
99
|
6
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Idemitsu Kosan Co., Ltd. | 4103 |
56 |
Roquette Freres | 1027 |
56 |
LG Chem, Ltd. | 17637 |
53 |
Archer Daniels Midland Company | 1137 |
52 |
FUJIFILM Corporation | 28555 |
32 |
Merck Patent GmbH | 5845 |
31 |
Gilead Sciences, Inc. | 1951 |
28 |
Eisai R&D Management Co., Ltd. | 1271 |
27 |
BASF SE | 20403 |
24 |
Council of Scientific & Industrial Research | 1408 |
22 |
Samsung Display Co., Ltd. | 32745 |
20 |
The Regents of the University of California | 19503 |
20 |
Samyang Corporation | 383 |
20 |
Merck Sharp & Dohme LLC | 3746 |
17 |
Novartis AG | 11276 |
15 |
Nissan Chemical Industries, Ltd. | 1759 |
15 |
Centre National de La Recherche Scientifique | 10091 |
14 |
SK Innovation Co., Ltd. | 1204 |
14 |
Janssen Pharmaceutica N.V. | 3615 |
13 |
LT Materials Co., Ltd. | 364 |
13 |
Other owners | 1515 |