- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 221/22 - Bridged ring systems
Patent holdings for IPC class C07D 221/22
Total number of patents in this class: 229
10-year publication summary
|
17
|
11
|
9
|
16
|
14
|
5
|
10
|
8
|
15
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rensselaer Polytechnic Institute | 829 |
8 |
| Boehringer Ingelheim International GmbH | 4640 |
7 |
| Alkermes Pharma Ireland Limited | 269 |
7 |
| Bristol-myers Squibb Company | 4867 |
6 |
| University of Pittsburgh - Of the Commonwealth System of Higher Education | 3178 |
6 |
| SpecGx LLC | 188 |
6 |
| Yunnan Haopy Pharmaceuticals Ltd | 8 |
6 |
| Merck Patent GmbH | 5820 |
5 |
| Takeda Pharmaceutical Company Limited | 2707 |
5 |
| Purdue Pharma L.P. | 500 |
5 |
| Yale University | 2400 |
5 |
| University of Florida Research Foundation, Inc. | 4044 |
4 |
| Universite de Rouen | 104 |
4 |
| Board of Regents, The University of Texas System | 5841 |
3 |
| Nippon Soda Co., Ltd. | 894 |
3 |
| Shanghai Institute of Materia Medica, Chinese Academy of Sciences | 833 |
3 |
| Southwest Jiaotong University | 168 |
3 |
| The United States of America, as represented by the Secretary, Department of Health and Human Services | 2866 |
3 |
| C4 Theraprutics, Inc. | 58 |
3 |
| Merck Sharp & Dohme LLC | 3750 |
3 |
| Other owners | 134 |