- 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: 183
10-year publication summary
|
10
|
14
|
13
|
5
|
17
|
16
|
20
|
21
|
12
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Merck Patent GmbH | 5812 |
11 |
| Idemitsu Kosan Co., Ltd. | 4227 |
7 |
| eFFECTOR Therapeutics, Inc. | 69 |
5 |
| UDC Ireland Limited | 475 |
5 |
| LG Chem, Ltd. | 17641 |
4 |
| The Regents of the University of California | 19989 |
4 |
| Wisconsin Alumni Research Foundation | 3889 |
4 |
| Mayo Foundation for Medical Education and Research | 3225 |
4 |
| Duk San Neolux Co., Ltd. | 655 |
4 |
| Promega Corporation | 574 |
4 |
| Shandong Dyne Marine Biopharmaceutical Co., Ltd | 5 |
4 |
| Merck Sharp & Dohme LLC | 3749 |
4 |
| Novartis AG | 10741 |
3 |
| Life Technologies Corporation | 3311 |
3 |
| The General Hospital Corporation | 4749 |
3 |
| Sichuan Kelun-Biotech Biopharmaceutical Co., Ltd. | 293 |
3 |
| Fundacion Del Sector Publico Estatal Centro Nacional de Investigaciones Oncologicas Carlos III (f.s.p. Cnio) | 60 |
3 |
| Samsung Display Co., Ltd. | 34984 |
2 |
| Amgen Inc. | 4081 |
2 |
| Konica Minolta, Inc. | 8763 |
2 |
| Other owners | 102 |