- 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: 783
10-year publication summary
|
12
|
18
|
87
|
158
|
132
|
115
|
92
|
78
|
63
|
52
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Signify Holding B.V. | 8161 |
85 |
| Jiaxing Super Lighting Electric Appliance Co., Ltd | 424 |
72 |
| Lutron Technology Company LLC | 2767 |
49 |
| Tridonic GmbH & Co KG | 1042 |
20 |
| Wangs Alliance Corp., DBA WAC Lighting | 261 |
19 |
| Valeo Vision | 1765 |
16 |
| Rohm Co., Ltd. | 6898 |
13 |
| Koito Manufacturing Co., Ltd. | 2477 |
12 |
| Lynk Labs, Inc. | 60 |
12 |
| On-Bright Electronics (Shanghai) Co., Ltd. | 332 |
12 |
| Xiamen PVTECH Co., Ltd. | 196 |
11 |
| Hella GmbH & Co. KGaA | 1733 |
9 |
| Infineon Technologies AG | 8418 |
8 |
| Panasonic Intellectual Property Management Co., Ltd. | 34403 |
7 |
| ABL IP Holding LLC | 1880 |
7 |
| BNSF Railway Company | 554 |
7 |
| Hubbell Lighting, Inc | 569 |
7 |
| Aleddra Inc., DBA Aleddra LED Lighting | 121 |
6 |
| Schreder, S.A. | 302 |
6 |
| Silergy Semiconductor Technology (Hangzhou) LTD | 640 |
6 |
| Other owners | 399 |