- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F21S - Non-portable lighting devices; systems thereof; vehicle 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: 386
10-year publication summary
|
14
|
41
|
53
|
72
|
60
|
74
|
60
|
41
|
29
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Signify Holding B.V. | 6837 |
20 |
| Quarkstar LLC | 215 |
19 |
| Elemental LED, Inc. | 165 |
15 |
| Korrus, Inc. | 447 |
13 |
| ABL IP Holding LLC | 1929 |
10 |
| Self Electronics Co., Ltd. | 150 |
8 |
| Guangdong OML Technology Co., Ltd. | 28 |
8 |
| Argo Import-Export, Ltd. | 9 |
7 |
| OPTOTRONIC GmbH | 198 |
7 |
| Arkalumen Inc. | 44 |
6 |
| Finelite Inc. | 31 |
6 |
| Zumtobel Lighting GmbH | 701 |
6 |
| Ledvance LLC | 336 |
4 |
| Lumileds LLC | 1827 |
4 |
| Polygroup Macau Limited (BVI) | 122 |
4 |
| Dongguan Opsco Optoelectronics Co., Ltd. | 11 |
4 |
| Axis Lighting Inc. | 98 |
3 |
| Certainteed Canada, Inc. | 57 |
3 |
| Contemporary Visions, L.L.C. | 316 |
3 |
| Eklipse Luminaire Architectural Inc. | 7 |
3 |
| Other owners | 233 |