- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications of materials not otherwise provided for
- C09K 19/54 - Additives having no specific mesophase
Patent holdings for IPC class C09K 19/54
Total number of patents in this class: 1449
10-year publication summary
|
139
|
168
|
146
|
173
|
153
|
90
|
60
|
46
|
38
|
13
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| DIC Corporation | 3597 |
249 |
| Merck Patent GmbH | 5909 |
168 |
| JNC Corporation | 1527 |
163 |
| JNC Petrochemical Corporation | 425 |
155 |
| FUJIFILM Corporation | 27102 |
83 |
| LG Chem, Ltd. | 17205 |
30 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8635 |
28 |
| Ticona LLC | 547 |
27 |
| Zeon Corporation | 3854 |
21 |
| Sharp Corporation | 10015 |
18 |
| Transitions Optical, Inc. | 317 |
18 |
| Samsung Display Co., Ltd. | 30585 |
15 |
| Sharp Kabushiki Kaisha | 18957 |
15 |
| Chisso Petrochemical Corporation | 66 |
14 |
| LG Display Co., Ltd. | 11907 |
13 |
| Boe Technology Group Co., Ltd. | 35384 |
13 |
| Nitto Denko Corporation | 7879 |
12 |
| SICPA Holding SA | 881 |
11 |
| Semiconductor Energy Laboratory Co., Ltd. | 10902 |
10 |
| Nissan Chemical Corporation | 1725 |
10 |
| Other owners | 376 |