- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 239/86 - QuinazolinesHydrogenated quinazolines with hetero atoms directly attached in position 4
Patent holdings for IPC class C07D 239/86
Total number of patents in this class: 71
10-year publication summary
|
5
|
6
|
7
|
2
|
4
|
4
|
5
|
0
|
1
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Pfizer Inc. | 3374 |
7 |
| The Trustees of Columbia University in the City of New York | 3636 |
5 |
| NY State Psychiatric Institute | 7 |
5 |
| Jiangsu Concord Biotechnology Co., Ltd. | 5 |
3 |
| Merck Patent GmbH | 5673 |
2 |
| Sumitomo Chemical Company, Limited | 9012 |
2 |
| Gilead Sciences, Inc. | 2200 |
2 |
| Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences | 129 |
2 |
| Joint Stock Company "BIOCAD" | 212 |
2 |
| Laurus Labs Private Limited | 67 |
2 |
| Liverpool School of Tropical Medicine | 27 |
2 |
| NATCO Pharma Limited | 205 |
2 |
| The University of Liverpool | 309 |
2 |
| Xuanzhu Pharma Co., Ltd. | 52 |
2 |
| Eisai R&D Management Co., Ltd. | 1171 |
2 |
| Glaxosmithkline LLC | 529 |
1 |
| Sandoz AG | 1406 |
1 |
| FUJIFILM Corporation | 30313 |
1 |
| Glaxosmithkline Intellectual Property Development Limited | 773 |
1 |
| The Johns Hopkins University | 5837 |
1 |
| Other owners | 24 |