- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 11/72 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing phosphorus also containing halogen, e.g. halophosphates
Patent holdings for IPC class C09K 11/72
Total number of patents in this class: 44
10-year publication summary
|
0
|
1
|
4
|
3
|
2
|
2
|
3
|
2
|
0
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 146092 |
6 |
| Nippon Electric Glass Co., Ltd. | 2456 |
4 |
| Toshiba Materials Co., Ltd. | 667 |
4 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6274 |
4 |
| Shoei Chemical Inc. | 321 |
3 |
| Toshiba Corporation | 12336 |
2 |
| Panasonic Corporation | 20110 |
1 |
| Hamamatsu Photonics K.K. | 4417 |
1 |
| OSRAM Opto Semiconductors GmbH | 3312 |
1 |
| Central Glass Company, Limited | 1265 |
1 |
| Drexel University | 988 |
1 |
| Evident Technologies | 13 |
1 |
| Force4 Corp. | 5 |
1 |
| Kasei Optonix, Ltd. | 2 |
1 |
| Kureha Corporation | 1027 |
1 |
| Lextar Electronics Corporation | 388 |
1 |
| Nagasaki Prefectural Government | 4 |
1 |
| Osaka University | 3376 |
1 |
| OSRAM OLED GmbH | 1778 |
1 |
| SN Display Co., Ltd. | 24 |
1 |
| Other owners | 7 |