- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications 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: 331
10-year publication summary
|
20
|
27
|
33
|
28
|
26
|
29
|
18
|
30
|
30
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Merck Patent GmbH | 5909 |
71 |
| FUJIFILM Corporation | 27102 |
54 |
| Sumitomo Chemical Company, Limited | 8808 |
23 |
| Nitto Denko Corporation | 7879 |
19 |
| LG Chem, Ltd. | 17205 |
14 |
| DIC Corporation | 3597 |
14 |
| Transitions Optical, Inc. | 317 |
14 |
| Nippon Kayaku Kabushiki Kaisha | 1400 |
12 |
| Mitsubishi Chemical Corporation | 4313 |
6 |
| Boe Technology Group Co., Ltd. | 35384 |
6 |
| JNC Corporation | 1527 |
6 |
| JNC Petrochemical Corporation | 425 |
6 |
| Transitions Optical Limited | 133 |
6 |
| Samsung Display Co., Ltd. | 30585 |
5 |
| Alphamicron Incorporated | 72 |
5 |
| Samsung Electronics Co., Ltd. | 131630 |
4 |
| BASF SE | 19740 |
4 |
| Electronics and Telecommunications Research Institute | 8830 |
4 |
| Crysoptix KK | 38 |
3 |
| The Hong Kong University of Science and Technology | 638 |
3 |
| Other owners | 52 |