- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 487/22 - Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups in which the condensed system contains four or more hetero rings
Patent holdings for IPC class C07D 487/22
Total number of patents in this class: 1385
10-year publication summary
|
54
|
73
|
65
|
88
|
82
|
72
|
69
|
89
|
84
|
62
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Idemitsu Kosan Co., Ltd. | 4220 |
42 |
| Merck Patent GmbH | 5768 |
29 |
| North Carolina State University | 1573 |
21 |
| Canon Kabushiki Kaisha | 7081 |
20 |
| FUJIFILM Corporation | 29586 |
17 |
| The Regents of the University of California | 20087 |
16 |
| Rmw CHO Group Limited | 18 |
16 |
| Demerx, Inc. | 75 |
15 |
| Health Research, Inc. | 342 |
15 |
| Universidade de Coimbra | 178 |
12 |
| BASF SE | 20991 |
11 |
| Boehringer Ingelheim International GmbH | 4646 |
11 |
| Centre National de La Recherche Scientifique | 10531 |
11 |
| The General Hospital Corporation | 4771 |
11 |
| Samsung Electronics Co., Ltd. | 147622 |
10 |
| Sumitomo Chemical Company, Limited | 9047 |
10 |
| DIC Corporation | 3813 |
10 |
| Venner Shipley LLP | 16 |
10 |
| Mallinckrodt Hospital Products IP Limited | 91 |
9 |
| Board of Regents, The University of Texas System | 5860 |
8 |
| Other owners | 1081 |