- All sections
- C - Chemistry; metallurgy
- C07D - Heterocyclic compounds
- C07D 487/16 - Peri-condensed systems
Patent holdings for IPC class C07D 487/16
Total number of patents in this class: 278
10-year publication summary
|
15
|
19
|
18
|
22
|
27
|
27
|
19
|
35
|
28
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rohm and Haas Electronic Materials Korea Ltd. | 546 |
16 |
| Merck Patent GmbH | 5909 |
13 |
| Idemitsu Kosan Co., Ltd. | 3995 |
13 |
| Bristol-myers Squibb Company | 5080 |
10 |
| Universal Display Corporation | 1678 |
8 |
| LG Chem, Ltd. | 17205 |
7 |
| Merck Sharp & Dohme Corp. | 2247 |
7 |
| Merck Sharp & Dohme LLC | 3689 |
6 |
| Carnegie Mellon University | 1405 |
5 |
| Dana-Farber Cancer Institute, Inc. | 2455 |
5 |
| Duk San Neolux Co., Ltd. | 512 |
5 |
| Regents of the University of Minnesota | 2620 |
5 |
| UDC Ireland Limited | 496 |
5 |
| Guangzhou ChinaRay Optoelectronic Materials Ltd. | 139 |
5 |
| Beijing Summer Sprout Technology Co., Ltd. | 113 |
5 |
| Samsung Display Co., Ltd. | 30585 |
4 |
| Kyulux, Inc. | 191 |
4 |
| The Cawthron Institute Trust Board | 14 |
4 |
| The Governing Council of The University of Toronto, | 1361 |
3 |
| J.M. Huber Corporation | 155 |
3 |
| Other owners | 145 |