- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 305/06 - Heterocyclic compounds containing four-membered rings having one oxygen atom as the only ring hetero atoms not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring atoms
Patent holdings for IPC class C07D 305/06
Total number of patents in this class: 291
10-year publication summary
|
23
|
13
|
21
|
25
|
20
|
30
|
20
|
26
|
16
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Changzhou Tronly Advanced Electronic Materials Co., Ltd. | 77 |
12 |
| Changzhou Tronly New Electronic Materials Co.,Ltd. | 76 |
11 |
| University of Pittsburgh - Of the Commonwealth System of Higher Education | 3090 |
8 |
| H. Lundbeck A/S | 1196 |
8 |
| BASF SE | 20570 |
7 |
| F. Hoffmann-La Roche AG | 7889 |
6 |
| Hoffmann-La Roche Inc. | 3341 |
6 |
| DIC Corporation | 3712 |
6 |
| The Salk Institute for Biological Studies | 444 |
6 |
| Shijiazhuang Chengzhi Yonghua Display Material Co., Ltd. | 196 |
6 |
| Sanofi | 3984 |
6 |
| FUJIFILM Corporation | 29075 |
5 |
| Canopy Growth Corporation | 219 |
5 |
| Hubei Gurun Technology Co., Ltd | 30 |
5 |
| Syngenta Participations AG | 2035 |
4 |
| Iowa State University Research Foundation, Inc. | 750 |
4 |
| Vivace Therapeutics, Inc. | 28 |
4 |
| Grey Wolf Therapeutics Limited | 16 |
4 |
| Xwpharma Ltd. | 55 |
4 |
| AstraZeneca AB | 2940 |
3 |
| Other owners | 171 |