- 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 9/238 - Arrangement or mounting of circuit elements integrated in the light source
Patent holdings for IPC class F21K 9/238
Total number of patents in this class: 673
10-year publication summary
|
72
|
110
|
135
|
135
|
122
|
82
|
55
|
37
|
60
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Xiamen Eco Lighting Co. Ltd. | 287 |
59 |
| Signify Holding B.V. | 7225 |
49 |
| Jiaxing Super Lighting Electric Appliance Co., Ltd | 374 |
44 |
| Feit Electric Company, Inc. | 250 |
28 |
| LEDVANCE GmbH | 570 |
24 |
| Ideal Industries Lighting LLC | 1149 |
22 |
| Savant Technologies, LLC | 350 |
21 |
| Ledvance LLC | 326 |
18 |
| Quarkstar LLC | 217 |
17 |
| Xiamen Leedarson Lighting Co.Ltd. | 103 |
12 |
| Korrus, Inc. | 452 |
11 |
| Zhejiang Super Lighting Electric Appliance Co., Ltd. | 51 |
10 |
| Suzhou Lekin Semiconductor Co., Ltd. | 1536 |
9 |
| Leedarson Lighting Co., Ltd. | 137 |
8 |
| Opple Lighting Co., Ltd. | 771 |
7 |
| Satco Products, Inc. | 71 |
7 |
| Seoul Semiconductor Co., Ltd. | 1066 |
7 |
| Amazon Technologies, Inc. | 25836 |
5 |
| LG Innotek Co., Ltd. | 7213 |
5 |
| Seoul Viosys Co., Ltd. | 1435 |
5 |
| Other owners | 305 |