- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 221/06 - Ring systems of three rings
Patent holdings for IPC class C07D 221/06
Total number of patents in this class: 145
10-year publication summary
|
8
|
9
|
7
|
12
|
13
|
7
|
6
|
6
|
3
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| UDC Ireland Limited | 476 |
5 |
| UCB Biopharma SRL | 576 |
5 |
| Boehringer Ingelheim International GmbH | 4642 |
4 |
| Global Blood Therapeutics, Inc. | 181 |
4 |
| Oncotherapy Science, Inc. | 269 |
4 |
| Purdue Pharma L.P. | 501 |
4 |
| The Regents of the University of California | 19961 |
3 |
| Auspex Pharmaceuticals, Inc. | 181 |
3 |
| Five Eleven Pharma Inc. | 18 |
3 |
| Northeastern University | 1193 |
3 |
| Painceptor Pharma Corporation | 12 |
3 |
| Plastipak Packaging, Inc. | 314 |
3 |
| LT Materials Co., Ltd. | 408 |
3 |
| Amgen Inc. | 4076 |
2 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10931 |
2 |
| Alexion Pharmaceuticals, Inc. | 638 |
2 |
| Arrowhead Center, Inc. | 59 |
2 |
| Biosearch Technologies, Inc. | 59 |
2 |
| Biotix, Inc. | 181 |
2 |
| Cornell University | 3307 |
2 |
| Other owners | 84 |