- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 491/16 - Peri-condensed systems
Patent holdings for IPC class C07D 491/16
Total number of patents in this class: 192
10-year publication summary
|
16
|
13
|
5
|
19
|
17
|
21
|
23
|
12
|
10
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Merck Patent GmbH | 5725 |
10 |
| Idemitsu Kosan Co., Ltd. | 4228 |
7 |
| UDC Ireland Limited | 510 |
6 |
| The Regents of the University of California | 20694 |
5 |
| Wisconsin Alumni Research Foundation | 3884 |
5 |
| Life Technologies Corporation | 3451 |
5 |
| Sjp Biotec GmbH | 30 |
5 |
| LG Chem, Ltd. | 17926 |
4 |
| Mayo Foundation for Medical Education and Research | 3377 |
4 |
| Duk San Neolux Co., Ltd. | 702 |
4 |
| Promega Corporation | 588 |
4 |
| Sichuan Kelun-Biotech Biopharmaceutical Co., Ltd. | 377 |
4 |
| Shandong Dyne Marine Biopharmaceutical Co., Ltd | 6 |
4 |
| Merck Sharp & Dohme LLC | 3734 |
4 |
| Novartis AG | 10279 |
3 |
| Samsung Display Co., Ltd. | 38544 |
3 |
| The General Hospital Corporation | 4855 |
3 |
| Fundacion Del Sector Publico Estatal Centro Nacional de Investigaciones Oncologicas Carlos III (f.s.p. Cnio) | 65 |
3 |
| Cybrexa 2, Inc. | 11 |
3 |
| Torqur AG | 21 |
3 |
| Other owners | 103 |