- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F21V - Functional features or details of lighting devices or systems thereofstructural combinations of lighting devices with other articles, not otherwise provided for
- F21V 9/38 - Combination of two or more photoluminescent elements of different materials
Patent holdings for IPC class F21V 9/38
Total number of patents in this class: 212
10-year publication summary
|
1
|
1
|
16
|
27
|
39
|
37
|
34
|
20
|
20
|
15
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Signify Holding B.V. | 7407 |
23 |
| Panasonic Intellectual Property Management Co., Ltd. | 30903 |
21 |
| Quarkstar LLC | 222 |
16 |
| Kyocera Corporation | 13680 |
14 |
| Korrus, Inc. | 463 |
13 |
| Toray Industries, Inc. | 6886 |
8 |
| Mitsubishi Chemical Corporation | 4480 |
8 |
| National Institute for Materials Science | 1109 |
8 |
| Nichia Corporation | 3649 |
7 |
| FUJIFILM Corporation | 29208 |
5 |
| Sharp Kabushiki Kaisha | 18813 |
5 |
| Sony Group Corporation | 13455 |
5 |
| Ichikoh Industries, Ltd. | 341 |
4 |
| Sony Corporation | 31157 |
3 |
| Delta Electronics, Inc. | 2581 |
3 |
| Bridgelux, Inc. | 364 |
3 |
| Maxim Lighting International, Inc. | 17 |
3 |
| Avantama AG | 48 |
3 |
| ABL IP Holding LLC | 1901 |
2 |
| Foshan Nationstar Optoelectronics Co., Ltd. | 100 |
2 |
| Other owners | 56 |