- All sections
- C - Chemistry; metallurgy
- C07D - Heterocyclic compounds
- C07D 207/27 - 2-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms with substituted hydrocarbon radicals directly attached to the ring nitrogen atom
Patent holdings for IPC class C07D 207/27
Total number of patents in this class: 339
10-year publication summary
|
25
|
23
|
25
|
18
|
28
|
24
|
19
|
31
|
24
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Zhejiang Huahai Pharmaceutical Co., Ltd. | 178 |
13 |
| Modernatx, Inc. | 1181 |
10 |
| Novartis AG | 11238 |
7 |
| Bristol-myers Squibb Company | 5080 |
7 |
| California Institute of Technology | 3884 |
7 |
| ISP Investments Inc. | 485 |
7 |
| Zhejiang Huahai Zhicheng Pharmaceutical Co., Ltd | 30 |
7 |
| E. I. du Pont de Nemours and Company | 4345 |
6 |
| PTC Therapeutics, Inc. | 492 |
6 |
| Takeda Pharmaceutical Company Limited | 2961 |
5 |
| Eli Lilly and Company | 3645 |
5 |
| FMC Corporation | 910 |
4 |
| Mitsubishi Tanabe Pharma Corporation | 579 |
4 |
| PharmaZell GmbH | 37 |
4 |
| Queen's University at Kingston | 517 |
4 |
| Shanghai Syncores Technologies Inc. Ltd | 29 |
4 |
| Taisho Pharmaceutical Co., Ltd. | 844 |
4 |
| Toyama Chemical Co., Ltd. | 114 |
4 |
| Zhejiang Huahai Tiancheng Pharmaceutical Co., Ltd | 12 |
4 |
| The Regents of the University of California | 18943 |
3 |
| Other owners | 224 |