- 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: 2869
10-year publication summary
|
182
|
207
|
199
|
181
|
175
|
155
|
181
|
141
|
134
|
21
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17778 |
93 |
| Merck Patent GmbH | 5741 |
68 |
| Duk San Neolux Co., Ltd. | 675 |
52 |
| LT Materials Co., Ltd. | 421 |
39 |
| Novartis AG | 10463 |
36 |
| The Regents of the University of California | 20447 |
35 |
| Janssen Pharmaceutica N.V. | 3298 |
35 |
| Bristol-myers Squibb Company | 4793 |
34 |
| Vertex Pharmaceuticals Incorporated | 1611 |
31 |
| FUJIFILM Corporation | 30126 |
30 |
| Idemitsu Kosan Co., Ltd. | 4224 |
30 |
| Universal Display Corporation | 2013 |
26 |
| Shaanxi Lighte Optoelectronics Material Co., Ltd. | 304 |
26 |
| Samsung SDI Co., Ltd. | 9481 |
25 |
| Takeda Pharmaceutical Company Limited | 2722 |
24 |
| FMC Corporation | 816 |
24 |
| Samsung Display Co., Ltd. | 37467 |
22 |
| F. Hoffmann-La Roche AG | 7882 |
21 |
| BASF SE | 21131 |
20 |
| Rohm and Haas Electronic Materials Korea Ltd. | 333 |
20 |
| Other owners | 2178 |