- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 19/60 - Pleochroic dyes
Patent holdings for IPC class C09K 19/60
Total number of patents in this class: 344
10-year publication summary
|
33
|
28
|
26
|
29
|
18
|
29
|
30
|
21
|
15
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Merck Patent GmbH | 5727 |
73 |
| FUJIFILM Corporation | 30010 |
57 |
| Sumitomo Chemical Company, Limited | 9039 |
23 |
| Nitto Denko Corporation | 8399 |
19 |
| Nippon Kayaku Kabushiki Kaisha | 1458 |
19 |
| LG Chem, Ltd. | 17741 |
16 |
| DIC Corporation | 3889 |
13 |
| Transitions Optical, Inc. | 250 |
12 |
| Mitsubishi Chemical Corporation | 4661 |
6 |
| JNC Corporation | 1514 |
6 |
| JNC Petrochemical Corporation | 328 |
6 |
| Samsung Display Co., Ltd. | 37127 |
5 |
| Electronics and Telecommunications Research Institute | 9408 |
5 |
| Boe Technology Group Co., Ltd. | 42421 |
5 |
| Alphamicron Incorporated | 89 |
5 |
| Transitions Optical Limited | 165 |
5 |
| Samsung Electronics Co., Ltd. | 151017 |
4 |
| BASF SE | 21135 |
4 |
| Jiangsu Hecheng Display Technology Co., Ltd. | 187 |
4 |
| Corning Incorporated | 10374 |
3 |
| Other owners | 54 |