- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 11/70 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing phosphorus
Patent holdings for IPC class C09K 11/70
Total number of patents in this class: 776
10-year publication summary
|
34
|
62
|
90
|
96
|
106
|
93
|
69
|
68
|
45
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 139798 |
111 |
| Shoei Chemical Inc. | 331 |
53 |
| Samsung Display Co., Ltd. | 33019 |
48 |
| Merck Patent GmbH | 5864 |
45 |
| FUJIFILM Corporation | 28857 |
40 |
| Nanoco Technologies Ltd. | 144 |
33 |
| 3m Innovative Properties Company | 17985 |
23 |
| Samsung SDI Co., Ltd. | 7423 |
21 |
| Nanosys, Inc. | 125 |
18 |
| Shin-Etsu Chemical Co., Ltd. | 5471 |
15 |
| Boe Technology Group Co., Ltd. | 39133 |
15 |
| Nexdot | 70 |
14 |
| DIC Corporation | 3690 |
10 |
| LG Display Co., Ltd. | 12937 |
9 |
| Sumitomo Chemical Company, Limited | 9008 |
9 |
| Najing Technology Corporation Limited | 96 |
9 |
| Sharp Corporation | 10228 |
8 |
| Nippon Electric Glass Co., Ltd. | 2404 |
8 |
| Nippon Chemical Industrial Co., Ltd. | 273 |
7 |
| Tokyo Ohka Kogyo Co., Ltd. | 1505 |
7 |
| Other owners | 273 |