- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F21K - Non-electric light sources using luminescence; light sources using electrochemiluminescence; light sources using charges of combustible material; light sources using semiconductor devices as light-generating elements; light sources not otherwise provided for
- F21K 9/278 - Arrangement or mounting of circuit elements integrated in the light source
Patent holdings for IPC class F21K 9/278
Total number of patents in this class: 402
10-year publication summary
5
|
32
|
113
|
77
|
86
|
67
|
41
|
26
|
20
|
8
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Jiaxing Super Lighting Electric Appliance Co., Ltd | 364 |
106 |
Signify Holding B.V. | 6837 |
25 |
DVA Holdings LLC | 37 |
24 |
LEDVANCE GmbH | 564 |
22 |
DVA Mayday Corporation, DBA Deltavation | 31 |
20 |
iLumisys, Inc. | 133 |
15 |
Aleddra Inc., DBA Aleddra LED Lighting | 106 |
11 |
Ledvance LLC | 336 |
10 |
Xiamen PVTECH Co., Ltd. | 84 |
10 |
Colt International Clothing Inc. | 11 |
9 |
Xiamen Eco Lighting Co. Ltd. | 288 |
8 |
Argo Import-Export, Ltd. | 9 |
7 |
Go Fan Yourself, LLC | 45 |
7 |
Orion Energy Systems, Inc. | 67 |
6 |
Ideal Industries Lighting LLC | 1168 |
6 |
LED Smart Inc. | 34 |
5 |
Energy Focus, Inc. | 76 |
4 |
Epistar Corporation | 1553 |
4 |
Feit Electric Company, Inc. | 237 |
4 |
Keystone Technologies, LLC | 10 |
4 |
Other owners | 95 |