- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 11/73 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing phosphorus also containing halogen, e.g. halophosphates also containing alkaline earth metals
Patent holdings for IPC class C09K 11/73
Total number of patents in this class: 65
10-year publication summary
|
1
|
4
|
5
|
3
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0
|
1
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3
|
1
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0
|
2
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toshiba Materials Co., Ltd. | 667 |
11 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6274 |
11 |
| Mitsubishi Chemical Corporation | 4507 |
6 |
| Koito Manufacturing Co., Ltd. | 2244 |
6 |
| Seoul Semiconductor Co., Ltd. | 1082 |
5 |
| Nichia Corporation | 3701 |
2 |
| Dyden Corporation | 48 |
2 |
| General Electric Company | 13780 |
1 |
| Sony Corporation | 31052 |
1 |
| Koninklijke Philips Electronics N.V. | 9658 |
1 |
| Murata Manufacturing Co., Ltd. | 24526 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 31375 |
1 |
| OSRAM GmbH | 2383 |
1 |
| Osram AG | 301 |
1 |
| Duke University | 3066 |
1 |
| Afo Research, Inc. | 6 |
1 |
| Dalian Luminglight Science and Technology Co., Ltd. | 5 |
1 |
| Force4 Corp. | 5 |
1 |
| General Research Institute for Nonferrous Metals | 25 |
1 |
| Grirem Advanced Materials Co., Ltd. | 133 |
1 |
| Other owners | 9 |