- 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: 228
10-year publication summary
|
1
|
16
|
27
|
39
|
37
|
35
|
20
|
21
|
20
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Signify Holding B.V. | 7901 |
30 |
| Panasonic Intellectual Property Management Co., Ltd. | 33507 |
21 |
| Quarkstar LLC | 226 |
16 |
| Kyocera Corporation | 14242 |
14 |
| Korrus, Inc. | 482 |
14 |
| Mitsubishi Chemical Corporation | 4676 |
9 |
| National Institute for Materials Science | 1089 |
9 |
| Toray Industries, Inc. | 7038 |
8 |
| Nichia Corporation | 3832 |
6 |
| FUJIFILM Corporation | 30244 |
5 |
| Sharp Kabushiki Kaisha | 18605 |
5 |
| Sony Group Corporation | 15170 |
5 |
| Ichikoh Industries, Ltd. | 380 |
4 |
| Sony Corporation | 30397 |
3 |
| Delta Electronics, Inc. | 2777 |
3 |
| Bridgelux, Inc. | 372 |
3 |
| Maxim Lighting International, Inc. | 18 |
3 |
| Avantama AG | 49 |
3 |
| Centre National de La Recherche Scientifique | 10865 |
2 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11010 |
2 |
| Other owners | 63 |