- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 409/04 - Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings directly linked by a ring-member-to-ring- member bond
Patent holdings for IPC class C07D 409/04
Total number of patents in this class: 2865
10-year publication summary
|
192
|
193
|
230
|
224
|
200
|
196
|
171
|
192
|
145
|
92
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17632 |
91 |
| Merck Patent GmbH | 5831 |
67 |
| Duk San Neolux Co., Ltd. | 651 |
48 |
| LT Materials Co., Ltd. | 406 |
39 |
| Bristol-myers Squibb Company | 4898 |
37 |
| Novartis AG | 10849 |
36 |
| Janssen Pharmaceutica N.V. | 3392 |
36 |
| The Regents of the University of California | 19918 |
35 |
| Vertex Pharmaceuticals Incorporated | 1597 |
31 |
| FUJIFILM Corporation | 29367 |
29 |
| Idemitsu Kosan Co., Ltd. | 4219 |
28 |
| FMC Corporation | 844 |
26 |
| Universal Display Corporation | 1909 |
26 |
| Takeda Pharmaceutical Company Limited | 2713 |
25 |
| Shaanxi Lighte Optoelectronics Material Co., Ltd. | 259 |
25 |
| Samsung SDI Co., Ltd. | 8319 |
24 |
| F. Hoffmann-La Roche AG | 7925 |
22 |
| Samsung Display Co., Ltd. | 34696 |
22 |
| BASF SE | 20933 |
20 |
| Rohm and Haas Electronic Materials Korea Ltd. | 330 |
20 |
| Other owners | 2178 |