- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 45/52 - 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 in a parallel array of LEDs
Patent holdings for IPC class H05B 45/52
Total number of patents in this class: 72
10-year publication summary
|
0
|
1
|
0
|
3
|
11
|
16
|
12
|
12
|
12
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Signify Holding B.V. | 7535 |
9 |
| Valeo Vision | 1521 |
5 |
| BNSF Railway Company | 420 |
4 |
| Infineon Technologies AG | 8219 |
3 |
| Ledup Manufacturing Group Ltd. | 22 |
3 |
| DVA Holdings LLC | 36 |
3 |
| Texas Instruments Incorporated | 19468 |
2 |
| DVA Mayday Corporation, DBA Deltavation | 31 |
2 |
| Grote Industries, Inc. | 153 |
2 |
| Koito Manufacturing Co., Ltd. | 2242 |
2 |
| Ledvance LLC | 320 |
2 |
| Hella GmbH & Co. KGaA | 1604 |
2 |
| Lutron Technology Company LLC | 2540 |
2 |
| Hotalux, Ltd. | 97 |
2 |
| Xiamen Leedarson Lighting Co.Ltd. | 103 |
2 |
| Ams-osram International GmbH | 982 |
2 |
| Denso Wave Incorporated | 392 |
1 |
| Rohm Co., Ltd. | 6444 |
1 |
| Hamamatsu Photonics K.K. | 4413 |
1 |
| OSRAM GmbH | 2384 |
1 |
| Other owners | 21 |