- 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: 352
10-year publication summary
|
33
|
28
|
26
|
29
|
18
|
30
|
30
|
22
|
15
|
14
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Merck Patent GmbH | 5731 |
75 |
| FUJIFILM Corporation | 30543 |
60 |
| Sumitomo Chemical Company, Limited | 8968 |
23 |
| LG Chem, Ltd. | 17937 |
20 |
| Nitto Denko Corporation | 8543 |
19 |
| Nippon Kayaku Kabushiki Kaisha | 1454 |
19 |
| DIC Corporation | 3965 |
13 |
| Transitions Optical, Inc. | 236 |
8 |
| Mitsubishi Chemical Corporation | 4726 |
6 |
| JNC Corporation | 1548 |
6 |
| JNC Petrochemical Corporation | 328 |
6 |
| Samsung Display Co., Ltd. | 38721 |
5 |
| Electronics and Telecommunications Research Institute | 9681 |
5 |
| Boe Technology Group Co., Ltd. | 44158 |
5 |
| Alphamicron Incorporated | 93 |
5 |
| Transitions Optical Limited | 174 |
5 |
| Samsung Electronics Co., Ltd. | 158156 |
4 |
| BASF SE | 21318 |
4 |
| Jiangsu Hecheng Display Technology Co., Ltd. | 194 |
4 |
| Corning Incorporated | 10514 |
3 |
| Other owners | 57 |