- 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: 302
10-year publication summary
|
18
|
18
|
19
|
26
|
26
|
19
|
33
|
27
|
27
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Merck Patent GmbH | 5820 |
13 |
| Idemitsu Kosan Co., Ltd. | 4222 |
13 |
| Bristol-myers Squibb Company | 4867 |
11 |
| DuPont Specialty Materials Korea Ltd. | 290 |
11 |
| Universal Display Corporation | 1930 |
9 |
| LG Chem, Ltd. | 17643 |
7 |
| Merck Sharp & Dohme LLC | 3750 |
7 |
| Rohm and Haas Electronic Materials Korea Ltd. | 330 |
6 |
| Guangzhou ChinaRay Optoelectronic Materials Ltd. | 148 |
6 |
| Samsung Display Co., Ltd. | 35100 |
5 |
| Merck Sharp & Dohme Corp. | 2191 |
5 |
| Dana-Farber Cancer Institute, Inc. | 2577 |
5 |
| Duk San Neolux Co., Ltd. | 656 |
5 |
| Regents of the University of Minnesota | 2698 |
5 |
| UDC Ireland Limited | 474 |
5 |
| Beijing Summer Sprout Technology Co., Ltd. | 133 |
5 |
| Carnegie Mellon University | 1542 |
4 |
| Kyulux, Inc. | 234 |
4 |
| The Cawthron Institute Trust Board | 16 |
4 |
| The Governing Council of The University of Toronto, | 1479 |
3 |
| Other owners | 169 |