- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 251/30 - Only oxygen atoms
Patent holdings for IPC class C07D 251/30
Total number of patents in this class: 116
10-year publication summary
|
12
|
10
|
8
|
11
|
11
|
9
|
3
|
9
|
3
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens Medical Solutions USA, Inc. | 1515 |
7 |
| PRC-DeSoto International, Inc. | 577 |
6 |
| Ennis Paint, Inc. | 21 |
6 |
| Tetra Discovery Partners, LLC | 11 |
6 |
| AlzeCure Pharma AB | 24 |
4 |
| LG Chem, Ltd. | 17632 |
3 |
| Shin-Etsu Chemical Co., Ltd. | 5658 |
3 |
| Adeka Corporation | 1362 |
3 |
| Polnox Corporation | 20 |
3 |
| Wanhua Chemical Group Co., Ltd. | 352 |
3 |
| Evonik Operations GmbH | 4105 |
3 |
| BASF SE | 20933 |
2 |
| Merck Patent GmbH | 5831 |
2 |
| FUJIFILM Corporation | 29367 |
2 |
| Massachusetts Institute of Technology | 10057 |
2 |
| Bromine Compounds Ltd. | 189 |
2 |
| Covestro Deutschland AG | 2747 |
2 |
| Dai-Ichi Kogyo Seiyaku Co., Ltd. | 229 |
2 |
| Kolon Industries, Inc. | 1687 |
2 |
| Nissan Chemical Industries, Ltd. | 1717 |
2 |
| Other owners | 51 |