- All sections
- C - Chemistry; metallurgy
- 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: 2850
10-year publication summary
|
261
|
192
|
193
|
229
|
224
|
200
|
195
|
168
|
179
|
45
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Chem, Ltd. | 17205 |
80 |
| Merck Patent GmbH | 5909 |
66 |
| Janssen Pharmaceutica N.V. | 3839 |
46 |
| Bristol-myers Squibb Company | 5080 |
43 |
| Novartis AG | 11238 |
40 |
| Duk San Neolux Co., Ltd. | 512 |
36 |
| Vertex Pharmaceuticals Incorporated | 1581 |
32 |
| The Regents of the University of California | 18943 |
30 |
| Takeda Pharmaceutical Company Limited | 2961 |
29 |
| LT Materials Co., Ltd. | 312 |
28 |
| F. Hoffmann-La Roche AG | 7958 |
26 |
| FMC Corporation | 910 |
26 |
| FUJIFILM Corporation | 27102 |
25 |
| Rohm and Haas Electronic Materials Korea Ltd. | 546 |
25 |
| Universal Display Corporation | 1678 |
25 |
| BASF SE | 19740 |
24 |
| Samsung SDI Co., Ltd. | 6671 |
24 |
| Samsung Display Co., Ltd. | 30585 |
23 |
| Idemitsu Kosan Co., Ltd. | 3995 |
23 |
| Shaanxi Lighte Optoelectronics Material Co., Ltd. | 190 |
22 |
| Other owners | 2177 |