- 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: 163
10-year publication summary
|
7
|
19
|
13
|
8
|
7
|
6
|
8
|
12
|
5
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Arkema France | 4246 |
12 |
| San-Apro Limited | 78 |
12 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8471 |
6 |
| Universite de Haute Alsace | 153 |
6 |
| Agfa NV | 673 |
6 |
| Coloplast A/S | 1930 |
6 |
| Centre National de La Recherche Scientifique | 11042 |
5 |
| Tokyo Electron Limited | 13843 |
4 |
| Agfa Graphics NV | 200 |
4 |
| Lintfield Limited | 6 |
4 |
| Tokyo Ohka Kogyo Co., Ltd. | 1565 |
4 |
| Tokyo University of Science Foundation | 436 |
4 |
| Henkel AG & Co. KGaA | 10767 |
3 |
| Adeka Corporation | 1380 |
3 |
| Changzhou Tronly Advanced Electronic Materials Co., Ltd. | 88 |
3 |
| Changzhou Tronly New Electronic Materials Co.,Ltd. | 86 |
3 |
| Sekisui Chemical Co., Ltd. | 3623 |
3 |
| DuPont Electronic Materials International, LLC | 430 |
3 |
| Canon Inc. | 43941 |
2 |
| FUJIFILM Corporation | 30543 |
2 |
| Other owners | 68 |