- 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: 2018
10-year publication summary
|
216
|
170
|
147
|
170
|
131
|
129
|
137
|
110
|
103
|
29
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Roquette Freres | 1002 |
57 |
| Idemitsu Kosan Co., Ltd. | 3995 |
54 |
| Archer Daniels Midland Company | 1164 |
53 |
| LG Chem, Ltd. | 17205 |
52 |
| Merck Patent GmbH | 5909 |
32 |
| FUJIFILM Corporation | 27102 |
30 |
| Gilead Sciences, Inc. | 1879 |
28 |
| Eisai R&D Management Co., Ltd. | 1304 |
27 |
| BASF SE | 19740 |
24 |
| Council of Scientific & Industrial Research | 1397 |
22 |
| Samsung Display Co., Ltd. | 30585 |
19 |
| The Regents of the University of California | 18943 |
19 |
| Samyang Corporation | 368 |
19 |
| Janssen Pharmaceutica N.V. | 3839 |
18 |
| Merck Sharp & Dohme LLC | 3689 |
17 |
| Novartis AG | 11238 |
15 |
| Nissan Chemical Industries, Ltd. | 1822 |
15 |
| SK Innovation Co., Ltd. | 1015 |
14 |
| Centre National de La Recherche Scientifique | 9632 |
13 |
| Purdue Research Foundation | 3277 |
12 |
| Other owners | 1478 |