- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F21K - Non-electric light sources using luminescencelight sources using electrochemiluminescencelight sources using charges of combustible materiallight sources using semiconductor devices as light-generating elementslight sources not otherwise provided for
- F21K 9/237 - Details of housings or cases, i.e. the parts between the light-generating element and the basesArrangement of components within housings or cases
Patent holdings for IPC class F21K 9/237
Total number of patents in this class: 474
10-year publication summary
|
22
|
72
|
109
|
95
|
108
|
55
|
43
|
36
|
36
|
20
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Jiaxing Super Lighting Electric Appliance Co., Ltd | 400 |
53 |
| Feit Electric Company, Inc. | 267 |
36 |
| Xiamen Eco Lighting Co. Ltd. | 282 |
30 |
| Signify Holding B.V. | 7452 |
22 |
| Quarkstar LLC | 223 |
20 |
| LEDVANCE GmbH | 573 |
14 |
| Lumileds LLC | 1913 |
11 |
| Leedarson Lighting Co., Ltd. | 168 |
8 |
| Ideal Industries Lighting LLC | 1134 |
7 |
| Xiamen Leedarson Lighting Co.Ltd. | 103 |
7 |
| Ledvance LLC | 320 |
6 |
| PIC Corporation | 79 |
6 |
| Satco Products, Inc. | 70 |
6 |
| Samsung Electronics Co., Ltd. | 145025 |
5 |
| Epistar Corporation | 1489 |
5 |
| Opple Lighting Co., Ltd. | 809 |
5 |
| Savant Technologies, LLC | 313 |
5 |
| Dongguan Huihuan Lighting Co., Ltd. | 34 |
5 |
| Google LLC | 42004 |
4 |
| Smartbotics Inc. | 7 |
4 |
| Other owners | 215 |