- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F21S - Non-portable lighting devicessystems thereofvehicle lighting devices specially adapted for vehicle exteriors
- F21S 4/28 - Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
Patent holdings for IPC class F21S 4/28
Total number of patents in this class: 978
10-year publication summary
|
60
|
126
|
139
|
129
|
107
|
131
|
143
|
118
|
105
|
45
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Signify Holding B.V. | 7407 |
68 |
| Elemental LED, Inc. | 172 |
34 |
| Self Electronics Co., Ltd. | 160 |
31 |
| Zumtobel Lighting GmbH | 731 |
25 |
| DVA Holdings LLC | 36 |
14 |
| Chien, Aaron | 99 |
14 |
| Chien, Te-ju | 99 |
14 |
| Wang, Hsin-yi | 99 |
14 |
| Hubbell Lighting, Inc | 631 |
13 |
| Fluence Bioengineering, Inc. | 118 |
11 |
| Xiamen Leedarson Lighting Co.Ltd. | 103 |
11 |
| Korrus, Inc. | 463 |
11 |
| DVA Mayday Corporation, DBA Deltavation | 31 |
10 |
| Xiamen PVTECH Co., Ltd. | 134 |
10 |
| Guangdong OML Technology Co., Ltd. | 28 |
10 |
| Ideal Industries Lighting LLC | 1134 |
10 |
| OSRAM SYLVANIA Inc. | 685 |
8 |
| Boe Technology Group Co., Ltd. | 40580 |
8 |
| ABL IP Holding LLC | 1901 |
8 |
| Lutron Technology Company LLC | 2530 |
8 |
| Other owners | 646 |