- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 335/16 - Oxygen atoms, e.g. thioxanthones
Patent holdings for IPC class C07D 335/16
Total number of patents in this class: 152
10-year publication summary
|
16
|
7
|
19
|
13
|
8
|
7
|
6
|
7
|
12
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| San-Apro Limited | 77 |
11 |
| Arkema France | 4110 |
10 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8478 |
6 |
| Agfa NV | 655 |
6 |
| Coloplast A/S | 1902 |
6 |
| Tokyo Electron Limited | 12712 |
5 |
| Universite de Haute Alsace | 151 |
5 |
| Agfa Graphics NV | 261 |
4 |
| Lintfield Limited | 6 |
4 |
| Centre National de La Recherche Scientifique | 10418 |
3 |
| Adeka Corporation | 1362 |
3 |
| Changzhou Tronly Advanced Electronic Materials Co., Ltd. | 77 |
3 |
| Changzhou Tronly New Electronic Materials Co.,Ltd. | 76 |
3 |
| Sekisui Chemical Co., Ltd. | 3386 |
3 |
| Tokyo University of Science Foundation | 391 |
3 |
| DuPont Electronic Materials International, LLC | 429 |
3 |
| Canon Inc. | 39888 |
2 |
| FUJIFILM Corporation | 29367 |
2 |
| Sumitomo Chemical Company, Limited | 9046 |
2 |
| Henkel AG & Co. KGaA | 10572 |
2 |
| Other owners | 66 |