- 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 9/32 - Elements containing photoluminescent material distinct from or spaced from the light source characterised by the arrangement of the photoluminescent material
Patent holdings for IPC class F21V 9/32
Total number of patents in this class: 389
10-year publication summary
|
2
|
4
|
26
|
53
|
67
|
67
|
65
|
46
|
37
|
27
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Intellectual Property Management Co., Ltd. | 32199 |
39 |
| Signify Holding B.V. | 7657 |
27 |
| Nichia Corporation | 3760 |
19 |
| Kyocera Corporation | 14000 |
17 |
| Quarkstar LLC | 226 |
16 |
| Sharp Kabushiki Kaisha | 18676 |
13 |
| Kyocera Sld Laser, Inc. | 299 |
13 |
| Denka Company Limited | 2643 |
8 |
| Stanley Electric Co., Ltd. | 1285 |
8 |
| Toray Industries, Inc. | 7005 |
7 |
| Sony Group Corporation | 14391 |
7 |
| Sony Corporation | 30885 |
6 |
| Maxell, Ltd. | 2851 |
6 |
| Seiko Epson Corporation | 19686 |
5 |
| FUJIFILM Corporation | 29728 |
5 |
| Dai Nippon Printing Co., Ltd. | 4130 |
5 |
| NGK Spark Plug Co., Ltd. | 888 |
5 |
| OSRAM GmbH | 2379 |
5 |
| Ichikoh Industries, Ltd. | 358 |
5 |
| Kyoto University | 2835 |
5 |
| Other owners | 168 |