- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 19/18 - Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a carbon chain the chain containing carbon-to-carbon triple bonds, e.g. tolans
Patent holdings for IPC class C09K 19/18
Total number of patents in this class: 520
10-year publication summary
|
47
|
42
|
46
|
42
|
23
|
21
|
14
|
27
|
21
|
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 |
134 |
| DIC Corporation | 3889 |
130 |
| JNC Corporation | 1514 |
74 |
| JNC Petrochemical Corporation | 328 |
66 |
| Chisso Petrochemical Corporation | 56 |
16 |
| FUJIFILM Corporation | 30010 |
10 |
| Jiangsu Hecheng Display Technology Co., Ltd. | 187 |
10 |
| Shijiazhuang Chengzhi Yonghua Display Material Co., Ltd. | 200 |
10 |
| Chisso Corporation | 57 |
8 |
| Rolic Technologies AG | 48 |
5 |
| Sharp Corporation | 10358 |
4 |
| Nitto Denko Corporation | 8399 |
4 |
| Essilor International (compagnie Generale D'optique) | 2979 |
4 |
| Huawei Technologies Co., Ltd. | 117695 |
3 |
| Kyushu University, National University Corporation | 1679 |
3 |
| Sharp Kabushiki Kaisha | 18616 |
3 |
| Nikon Corporation | 7268 |
2 |
| AGC Seimi Chemical Co., Ltd. | 57 |
2 |
| Kymeta Corporation | 272 |
2 |
| Tokyo Institute of Technology | 1346 |
2 |
| Other owners | 28 |