- 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 4/28 - 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: 902
10-year publication summary
|
27
|
60
|
126
|
139
|
129
|
107
|
130
|
142
|
114
|
50
|
| 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 |
50 |
| Self Electronics Co., Ltd. | 150 |
32 |
| Elemental LED, Inc. | 165 |
31 |
| Zumtobel Lighting GmbH | 701 |
23 |
| DVA Holdings LLC | 37 |
15 |
| Chien, Aaron | 109 |
14 |
| Chien, Te-ju | 109 |
14 |
| Wang, Hsin-yi | 109 |
14 |
| Hubbell Lighting, Inc | 673 |
13 |
| Fluence Bioengineering, Inc. | 122 |
11 |
| Xiamen Leedarson Lighting Co.Ltd. | 103 |
11 |
| DVA Mayday Corporation, DBA Deltavation | 31 |
10 |
| Guangdong OML Technology Co., Ltd. | 28 |
10 |
| Ideal Industries Lighting LLC | 1168 |
10 |
| Korrus, Inc. | 447 |
10 |
| OSRAM SYLVANIA Inc. | 742 |
8 |
| Boe Technology Group Co., Ltd. | 35384 |
8 |
| Xiamen PVTECH Co., Ltd. | 84 |
8 |
| ABL IP Holding LLC | 1929 |
7 |
| Axis Lighting Inc. | 98 |
7 |
| Other owners | 596 |