- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 493/20 - Spiro-condensed systems
Patent holdings for IPC class C07D 493/20
Total number of patents in this class: 149
10-year publication summary
|
14
|
8
|
8
|
5
|
6
|
5
|
9
|
8
|
12
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eisai R&D Management Co., Ltd. | 1167 |
10 |
| Institut National de La Sante et de La Recherche Medicale (inserm) | 3229 |
5 |
| Fileclo Sp. z o.o. | 6 |
5 |
| Pfizer Inc. | 3386 |
4 |
| Centre National de La Recherche Scientifique | 11023 |
4 |
| Institut Curie | 615 |
4 |
| Dafra Pharma N.V. | 9 |
3 |
| Regeneron Pharmaceuticals, Inc. | 4701 |
3 |
| Merck Patent GmbH | 5728 |
2 |
| President and Fellows of Harvard College | 6094 |
2 |
| Adam Mickiewicz University | 17 |
2 |
| Adeka Corporation | 1377 |
2 |
| Chengdu Baiyu Pharmaceutical Co., Ltd. | 68 |
2 |
| Chengdu Baiyu Technology Pharmacy Co., Ltd | 3 |
2 |
| The Chinese University of Hong Kong | 764 |
2 |
| Chronos Therapeutics Limited | 19 |
2 |
| Howard University | 198 |
2 |
| Institute of Materia Medica, Chinese Academy of Medical Sciences | 186 |
2 |
| Kunming Institute of Botany, Chinese Academy of Sciences | 34 |
2 |
| Mirati Therapeutics, Inc. | 285 |
2 |
| Other owners | 87 |