- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 323/00 - Heterocyclic compounds containing more than two oxygen atoms as the only ring hetero atoms
Patent holdings for IPC class C07D 323/00
Total number of patents in this class: 139
10-year publication summary
|
8
|
5
|
8
|
7
|
9
|
4
|
9
|
6
|
10
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Pall Corporation | 341 |
6 |
| The Governors of the University of Alberta | 866 |
5 |
| Toray Industries, Inc. | 6930 |
4 |
| Tokyo Institute of Technology | 1379 |
4 |
| Helmholtz Center for Infection Research | 3 |
3 |
| LG Chem, Ltd. | 17594 |
2 |
| Centre National de La Recherche Scientifique | 10408 |
2 |
| FUJIFILM Corporation | 29295 |
2 |
| Sumitomo Rubber Industries, Ltd. | 4522 |
2 |
| National Taiwan University | 1215 |
2 |
| Daicel Corporation | 2336 |
2 |
| Epizon Pharma, Inc. | 32 |
2 |
| Korea Research Institute of Chemical Technology | 1384 |
2 |
| National University Corporation Okayama University | 472 |
2 |
| Neurovive Pharmaceutical AB | 15 |
2 |
| Solvay SA | 996 |
2 |
| Tianjin Polytechnic University | 37 |
2 |
| University of Windsor | 125 |
2 |
| Wan Station Co., Ltd. | 2 |
2 |
| Honda Motor Co., Ltd. | 25166 |
1 |
| Other owners | 88 |