- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 501/46 - Methylene radicals, substituted by nitrogen atomsLactams thereof with the 2-carboxyl groupMethylene radicals substituted by nitrogen-containing hetero rings attached by the ring nitrogen atomQuaternary compounds thereof with the 7-amino radical acylated by carboxylic acids containing hetero rings
Patent holdings for IPC class C07D 501/46
Total number of patents in this class: 43
10-year publication summary
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4
|
2
|
1
|
1
|
2
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4
|
1
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1
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3
|
0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shionogi & Co., Ltd. | 873 |
10 |
| Shanghai Shengdi Pharmaceutical Co., Ltd | 164 |
5 |
| Shanghai Senhui Medicine Co., Ltd. | 90 |
5 |
| Jiangsu Hengrui Medicine Co., Ltd. | 694 |
3 |
| Nectar Lifesciences Limited | 6 |
3 |
| Diverse Biotech, Inc. | 18 |
2 |
| Sandoz AG | 1412 |
1 |
| Merck Sharp & Dohme Corp. | 2183 |
1 |
| Howard Hughes Medical Institute | 230 |
1 |
| Intervet International B.V. | 1341 |
1 |
| Jiangsu Hengyi Pharmaceutical Co., Ltd. | 356 |
1 |
| Nanyang Technological University | 2200 |
1 |
| Orchid Chemicals & Pharmaceuticals Limited | 34 |
1 |
| Ranbaxy Laboratories Limited | 262 |
1 |
| Rigel Pharmaceuticals, Inc. | 507 |
1 |
| The University of Hong Kong | 833 |
1 |
| Naeja-rgm Pharmaceuticals ULC | 4 |
1 |
| Merck Sharp & Dohme LLC | 3735 |
1 |
| Jiangsu Hengrui Pharmaceuticals Co., Ltd. | 273 |
1 |
| Ncpc Hebei Huamin Pharmaceutical Co., Ltd. | 2 |
1 |
| Other owners | 1 |