- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F21S - Non-portable lighting devicessystems thereofvehicle lighting devices specially adapted for vehicle exteriors
- F21S 4/20 - Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
Patent holdings for IPC class F21S 4/20
Total number of patents in this class: 422
10-year publication summary
|
28
|
41
|
57
|
50
|
65
|
57
|
37
|
30
|
30
|
35
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Quarkstar LLC | 226 |
23 |
| Signify Holding B.V. | 7637 |
21 |
| Elemental LED, Inc. | 175 |
16 |
| Korrus, Inc. | 467 |
14 |
| ABL IP Holding LLC | 1902 |
10 |
| Guangdong OML Technology Co., Ltd. | 28 |
8 |
| Self Electronics Co., Ltd. | 164 |
7 |
| OPTOTRONIC GmbH | 159 |
7 |
| Arkalumen Inc. | 51 |
6 |
| Finelite Inc. | 31 |
6 |
| Zumtobel Lighting GmbH | 753 |
6 |
| Argo Import-Export, Ltd. | 7 |
5 |
| Ledvance LLC | 314 |
4 |
| Opple Lighting Co., Ltd. | 838 |
4 |
| Polygroup Macau Limited (BVI) | 105 |
4 |
| Ztarx Corporation Limited | 15 |
4 |
| Dongguan Opsco Optoelectronics Co., Ltd. | 16 |
4 |
| LG Innotek Co., Ltd. | 7834 |
3 |
| Boe Technology Group Co., Ltd. | 41698 |
3 |
| Certainteed Canada, Inc. | 59 |
3 |
| Other owners | 264 |