- 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: 87
10-year publication summary
|
1
|
0
|
3
|
11
|
16
|
12
|
12
|
12
|
12
|
11
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Signify Holding B.V. | 8052 |
11 |
| BNSF Railway Company | 541 |
5 |
| Valeo Vision | 1747 |
5 |
| Ams-osram International GmbH | 1648 |
4 |
| Infineon Technologies AG | 8402 |
3 |
| O2Micro, Inc. | 36 |
3 |
| Ledup Manufacturing Group Ltd. | 24 |
3 |
| DVA Holdings LLC | 37 |
3 |
| Texas Instruments Incorporated | 19672 |
2 |
| OSRAM GmbH | 2210 |
2 |
| DVA Mayday Corporation, DBA Deltavation | 30 |
2 |
| Grote Industries, Inc. | 168 |
2 |
| Koito Manufacturing Co., Ltd. | 2452 |
2 |
| Ledvance LLC | 311 |
2 |
| Hella GmbH & Co. KGaA | 1712 |
2 |
| Lutron Technology Company LLC | 2749 |
2 |
| Hotalux, Ltd. | 100 |
2 |
| Xiamen Leedarson Lighting Co.Ltd. | 103 |
2 |
| Denso Wave Incorporated | 402 |
1 |
| Rohm Co., Ltd. | 6826 |
1 |
| Other owners | 28 |