- 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: 163
10-year publication summary
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7
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8
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8
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10
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4
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7
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9
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10
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6
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1
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ocean's King Lighting Science & Technology Co., Ltd. | 273 |
9 |
| Samsung Display Co., Ltd. | 37314 |
8 |
| LG Electronics Inc. | 74447 |
6 |
| Samsung Electronics Co., Ltd. | 151726 |
5 |
| The Regents of the University of California | 20410 |
5 |
| OSRAM Opto Semiconductors GmbH | 3277 |
5 |
| Denka Company Limited | 2680 |
4 |
| Intematix Corporation | 193 |
4 |
| California Institute of Technology | 4015 |
3 |
| PPG Industries Ohio, Inc. | 3384 |
3 |
| Hyosung Corporation | 285 |
3 |
| Ledvance LLC | 313 |
3 |
| Current Lighting Solutions, LLC f/k/a GE Lighting Solutions, LLC | 387 |
3 |
| Panasonic Corporation | 19867 |
2 |
| Konica Minolta, Inc. | 8976 |
2 |
| Mitsubishi Chemical Corporation | 4671 |
2 |
| National Institute of Advanced Industrial Science and Technology | 3796 |
2 |
| Nichia Corporation | 3797 |
2 |
| citizen Electronics Co., Ltd. | 342 |
2 |
| citizen Watch Co., Ltd. | 1080 |
2 |
| Other owners | 88 |