- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 215/20 - Oxygen atoms
Patent holdings for IPC class C07D 215/20
Total number of patents in this class: 347
10-year publication summary
|
22
|
28
|
19
|
22
|
19
|
14
|
29
|
8
|
21
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Biogen MA Inc. | 942 |
13 |
| Nippon Soda Co., Ltd. | 885 |
11 |
| Boehringer Ingelheim International GmbH | 4488 |
9 |
| Syngenta Participations AG | 1484 |
8 |
| Bayer Cropscience AG | 1833 |
6 |
| The Johns Hopkins University | 5929 |
5 |
| Korea Research Institute of Chemical Technology | 1486 |
5 |
| Abbvie Inc. | 1798 |
4 |
| Asahi Kasei Pharma Corporation | 115 |
4 |
| Chia Tai Tianqing Pharmaceutical Group Co., Ltd. | 780 |
4 |
| Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V. | 1856 |
4 |
| Purdue Pharma L.P. | 433 |
4 |
| Raqualia Pharma Inc. | 123 |
4 |
| Handa Oncology, LLC | 25 |
4 |
| E. I. du Pont de Nemours and Company | 3464 |
3 |
| Centre National de La Recherche Scientifique | 11092 |
3 |
| Bayer AG | 3560 |
3 |
| Council of Scientific & Industrial Research | 1447 |
3 |
| Exelixis, Inc. | 395 |
3 |
| Gilead Sciences, Inc. | 2243 |
3 |
| Other owners | 244 |