- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications of materials not otherwise provided for
- C09K 11/55 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing beryllium, magnesium, alkali metals or alkaline earth metals
Patent holdings for IPC class C09K 11/55
Total number of patents in this class: 185
10-year publication summary
|
13
|
10
|
8
|
8
|
8
|
10
|
4
|
7
|
9
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ocean's King Lighting Science & Technology Co., Ltd. | 273 |
9 |
| Samsung Electronics Co., Ltd. | 131630 |
8 |
| Seoul Semiconductor Co., Ltd. | 1073 |
7 |
| LG Electronics Inc. | 69257 |
6 |
| The Regents of the University of California | 18943 |
6 |
| Nichia Corporation | 3394 |
6 |
| Intematix Corporation | 223 |
6 |
| OSRAM Opto Semiconductors GmbH | 3390 |
5 |
| citizen Electronics Co., Ltd. | 378 |
5 |
| Denka Company Limited | 2189 |
4 |
| Samsung Display Co., Ltd. | 30585 |
3 |
| California Institute of Technology | 3884 |
3 |
| PPG Industries Ohio, Inc. | 3430 |
3 |
| Hyosung Corporation | 300 |
3 |
| Korea Research Institute of Chemical Technology | 1266 |
3 |
| Ledvance LLC | 336 |
3 |
| Nemoto & Co., Ltd. | 27 |
3 |
| Current Lighting Solutions, LLC f/k/a GE Lighting Solutions, LLC | 417 |
3 |
| Panasonic Corporation | 20786 |
2 |
| Konica Minolta, Inc. | 8349 |
2 |
| Other owners | 95 |