- 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: 121
10-year publication summary
|
10
|
8
|
11
|
11
|
9
|
3
|
9
|
3
|
13
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens Medical Solutions USA, Inc. | 1470 |
7 |
| PRC-DeSoto International, Inc. | 557 |
6 |
| Ennis Paint, Inc. | 20 |
6 |
| Tetra Discovery Partners, LLC | 11 |
6 |
| AlzeCure Pharma AB | 25 |
4 |
| LG Chem, Ltd. | 17867 |
3 |
| Shin-Etsu Chemical Co., Ltd. | 5976 |
3 |
| Adeka Corporation | 1367 |
3 |
| Polnox Corporation | 13 |
3 |
| Tosoh Corporation | 1387 |
3 |
| Wanhua Chemical Group Co., Ltd. | 370 |
3 |
| Evonik Operations GmbH | 4262 |
3 |
| BASF SE | 21151 |
2 |
| Merck Patent GmbH | 5669 |
2 |
| FUJIFILM Corporation | 30296 |
2 |
| Massachusetts Institute of Technology | 10209 |
2 |
| Bromine Compounds Ltd. | 182 |
2 |
| Covestro Deutschland AG | 2805 |
2 |
| Dai-Ichi Kogyo Seiyaku Co., Ltd. | 223 |
2 |
| Hydro-Quebec | 634 |
2 |
| Other owners | 55 |