- 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: 139
10-year publication summary
|
11
|
7
|
12
|
14
|
11
|
7
|
6
|
3
|
8
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| UDC Ireland Limited | 508 |
5 |
| UCB Biopharma SRL | 599 |
5 |
| Boehringer Ingelheim International GmbH | 4493 |
4 |
| Global Blood Therapeutics, Inc. | 169 |
4 |
| Oncotherapy Science, Inc. | 242 |
4 |
| Purdue Pharma L.P. | 486 |
4 |
| The Regents of the University of California | 20745 |
3 |
| Five Eleven Pharma Inc. | 18 |
3 |
| Northeastern University | 1294 |
3 |
| Plastipak Packaging, Inc. | 270 |
3 |
| LT Materials Co., Ltd. | 444 |
3 |
| Amgen Inc. | 4427 |
2 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11123 |
2 |
| Alexion Pharmaceuticals, Inc. | 648 |
2 |
| Arrowhead Center, Inc. | 64 |
2 |
| Auspex Pharmaceuticals, Inc. | 133 |
2 |
| Biosearch Technologies, Inc. | 69 |
2 |
| Cornell University | 3425 |
2 |
| Ecolab USA Inc. | 5796 |
2 |
| Heesung Material Ltd. | 39 |
2 |
| Other owners | 80 |