- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications 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: 171
10-year publication summary
|
10
|
8
|
8
|
8
|
10
|
4
|
7
|
9
|
11
|
6
|
| 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 |
9 |
| Samsung Electronics Co., Ltd. | 146346 |
8 |
| LG Electronics Inc. | 73111 |
6 |
| The Regents of the University of California | 19929 |
6 |
| OSRAM Opto Semiconductors GmbH | 3311 |
5 |
| Samsung Display Co., Ltd. | 34798 |
4 |
| Denka Company Limited | 2580 |
4 |
| Intematix Corporation | 203 |
4 |
| California Institute of Technology | 3972 |
3 |
| PPG Industries Ohio, Inc. | 3453 |
3 |
| Hyosung Corporation | 290 |
3 |
| Korea Research Institute of Chemical Technology | 1390 |
3 |
| Ledvance LLC | 319 |
3 |
| Seoul Semiconductor Co., Ltd. | 1082 |
3 |
| Current Lighting Solutions, LLC f/k/a GE Lighting Solutions, LLC | 396 |
3 |
| Panasonic Corporation | 20099 |
2 |
| Konica Minolta, Inc. | 8742 |
2 |
| Mitsubishi Chemical Corporation | 4514 |
2 |
| National Institute of Advanced Industrial Science and Technology | 3802 |
2 |
| Nichia Corporation | 3705 |
2 |
| Other owners | 94 |