- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 45/50 - Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDsCircuit arrangements for operating light-emitting diodes [LED] responsive to LED lifeProtective circuits
Patent holdings for IPC class H05B 45/50
Total number of patents in this class: 723
10-year publication summary
|
5
|
9
|
14
|
87
|
155
|
130
|
114
|
91
|
78
|
58
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Signify Holding B.V. | 7717 |
79 |
| Jiaxing Super Lighting Electric Appliance Co., Ltd | 407 |
72 |
| Lutron Technology Company LLC | 2610 |
45 |
| Wangs Alliance Corp., DBA WAC Lighting | 229 |
18 |
| Tridonic GmbH & Co KG | 1020 |
17 |
| Valeo Vision | 1589 |
15 |
| On-Bright Electronics (Shanghai) Co., Ltd. | 337 |
12 |
| Rohm Co., Ltd. | 6561 |
11 |
| Lynk Labs, Inc. | 61 |
11 |
| Koito Manufacturing Co., Ltd. | 2319 |
10 |
| Xiamen PVTECH Co., Ltd. | 160 |
9 |
| Hella GmbH & Co. KGaA | 1633 |
9 |
| Infineon Technologies AG | 8293 |
8 |
| Panasonic Intellectual Property Management Co., Ltd. | 32504 |
7 |
| ABL IP Holding LLC | 1908 |
7 |
| BNSF Railway Company | 477 |
7 |
| Hubbell Lighting, Inc | 618 |
7 |
| Aleddra Inc., DBA Aleddra LED Lighting | 119 |
6 |
| Schreder, S.A. | 293 |
6 |
| Silergy Semiconductor Technology (Hangzhou) LTD | 622 |
6 |
| Other owners | 361 |