- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 11/79 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing rare earth metals containing silicon
Patent holdings for IPC class C09K 11/79
Total number of patents in this class: 282
10-year publication summary
|
10
|
2
|
15
|
11
|
6
|
12
|
6
|
6
|
9
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ocean's King Lighting Science & Technology Co., Ltd. | 273 |
25 |
| Mitsubishi Chemical Corporation | 4457 |
20 |
| National Institute for Materials Science | 1101 |
17 |
| Koninklijke Philips Electronics N.V. | 10767 |
14 |
| Panasonic Intellectual Property Management Co., Ltd. | 29895 |
13 |
| Philips Intellectual Property & Standards GmbH | 2102 |
12 |
| Nichia Corporation | 3562 |
8 |
| Denka Company Limited | 2471 |
6 |
| Grirem Advanced Materials Co., Ltd. | 127 |
6 |
| Shenzhen Ocean's King Lighting Engineering Co., Ltd. | 46 |
5 |
| Tohoku University | 2689 |
5 |
| Samsung Electronics Co., Ltd. | 139551 |
4 |
| Seoul Semiconductor Co., Ltd. | 1072 |
4 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6254 |
4 |
| Sumitomo Chemical Company, Limited | 8997 |
3 |
| Mitsubishi Rayon Co., Ltd. | 943 |
3 |
| Hyosung Corporation | 292 |
3 |
| Intematix Corporation | 212 |
3 |
| LITEC-LP GmbH | 17 |
3 |
| Saint-Gobain Cristaux et Detecteurs | 20 |
3 |
| Other owners | 121 |