- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 487/16 - Peri-condensed systems
Patent holdings for IPC class C07D 487/16
Total number of patents in this class: 300
10-year publication summary
|
19
|
18
|
22
|
27
|
27
|
19
|
33
|
29
|
29
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Merck Patent GmbH | 5828 |
13 |
| Idemitsu Kosan Co., Ltd. | 4214 |
13 |
| Bristol-myers Squibb Company | 4875 |
11 |
| DuPont Specialty Materials Korea Ltd. | 286 |
11 |
| Universal Display Corporation | 1902 |
9 |
| LG Chem, Ltd. | 17615 |
7 |
| Merck Sharp & Dohme LLC | 3749 |
7 |
| Rohm and Haas Electronic Materials Korea Ltd. | 330 |
6 |
| Guangzhou ChinaRay Optoelectronic Materials Ltd. | 148 |
6 |
| Merck Sharp & Dohme Corp. | 2198 |
5 |
| Dana-Farber Cancer Institute, Inc. | 2562 |
5 |
| Duk San Neolux Co., Ltd. | 645 |
5 |
| Regents of the University of Minnesota | 2690 |
5 |
| UDC Ireland Limited | 480 |
5 |
| Beijing Summer Sprout Technology Co., Ltd. | 132 |
5 |
| Samsung Display Co., Ltd. | 34595 |
4 |
| Carnegie Mellon University | 1528 |
4 |
| Kyulux, Inc. | 234 |
4 |
| The Cawthron Institute Trust Board | 16 |
4 |
| The Governing Council of The University of Toronto, | 1474 |
3 |
| Other owners | 168 |