- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 335/12 - Thioxanthenes
Patent holdings for IPC class C07D 335/12
Total number of patents in this class: 75
10-year publication summary
|
3
|
9
|
6
|
5
|
2
|
2
|
3
|
7
|
1
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| HallStar Beauty and Personal Care Innovations Company | 71 |
6 |
| Idemitsu Kosan Co., Ltd. | 4225 |
4 |
| Changzhou Tronly Advanced Electronic Materials Co., Ltd. | 84 |
4 |
| Changzhou Tronly New Electronic Materials Co.,Ltd. | 81 |
4 |
| Durham University | 38 |
4 |
| Howard Hughes Medical Institute | 230 |
4 |
| Universal Display Corporation | 2018 |
4 |
| William Marsh Rice University | 1059 |
4 |
| Johnson & Johnson Vision Care, Inc. | 1185 |
3 |
| Samsung SDI Co., Ltd. | 9590 |
3 |
| Shin-Etsu Chemical Co., Ltd. | 5899 |
3 |
| WisTa Laboratories Ltd. | 137 |
3 |
| Samsung Display Co., Ltd. | 37561 |
2 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 46952 |
2 |
| JSR Corporation | 2559 |
2 |
| Changzhou Tronly Opto-Electronic Materials Co., Ltd. | 12 |
2 |
| LG Chem, Ltd. | 17786 |
1 |
| Merck Patent GmbH | 5733 |
1 |
| Tokyo Electron Limited | 13463 |
1 |
| Wako Pure Chemical Industries, Ltd. | 128 |
1 |
| Other owners | 17 |