- 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: 2871
10-year publication summary
|
193
|
230
|
224
|
200
|
197
|
172
|
194
|
152
|
144
|
92
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17967 |
94 |
| Merck Patent GmbH | 5742 |
68 |
| Duk San Neolux Co., Ltd. | 703 |
54 |
| LT Materials Co., Ltd. | 447 |
40 |
| The Regents of the University of California | 20868 |
37 |
| Janssen Pharmaceutica N.V. | 3150 |
36 |
| Bristol-myers Squibb Company | 4757 |
35 |
| Novartis AG | 10174 |
33 |
| FUJIFILM Corporation | 30653 |
33 |
| Idemitsu Kosan Co., Ltd. | 4269 |
30 |
| Shaanxi Lighte Optoelectronics Material Co., Ltd. | 325 |
27 |
| Samsung SDI Co., Ltd. | 10782 |
26 |
| Vertex Pharmaceuticals Incorporated | 1576 |
26 |
| Universal Display Corporation | 2101 |
26 |
| FMC Corporation | 813 |
25 |
| Samsung Display Co., Ltd. | 39012 |
22 |
| Takeda Pharmaceutical Company Limited | 2698 |
21 |
| Rohm and Haas Electronic Materials Korea Ltd. | 332 |
20 |
| F. Hoffmann-La Roche AG | 7796 |
19 |
| BASF SE | 21328 |
19 |
| Other owners | 2180 |