- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 19/04 - Liquid crystal materials characterised by the chemical structure of the liquid crystal components
Patent holdings for IPC class C09K 19/04
Total number of patents in this class: 1288
10-year publication summary
|
184
|
157
|
157
|
131
|
88
|
90
|
84
|
47
|
51
|
32
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Merck Patent GmbH | 5756 |
466 |
| Shijiazhuang Chengzhi Yonghua Display Material Co., Ltd. | 199 |
126 |
| FUJIFILM Corporation | 29752 |
94 |
| Jiangsu Hecheng Display Technology Co., Ltd. | 185 |
48 |
| Samsung Display Co., Ltd. | 35888 |
30 |
| LG Chem, Ltd. | 17682 |
30 |
| JNC Corporation | 1507 |
29 |
| JNC Petrochemical Corporation | 327 |
29 |
| DIC Corporation | 3830 |
25 |
| Sharp Corporation | 10297 |
24 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8475 |
20 |
| Sumitomo Chemical Company, Limited | 9095 |
17 |
| SICPA Holding SA | 923 |
17 |
| Zeon Corporation | 4115 |
16 |
| Rolic Technologies AG | 45 |
15 |
| Transitions Optical, Inc. | 252 |
12 |
| Transitions Optical Limited | 164 |
11 |
| Kent State University | 236 |
9 |
| Rolic AG | 69 |
8 |
| Shijiazhuang Chengzhi Yonghua Display Materials Co., Ltd. | 45 |
8 |
| Other owners | 254 |