- All sections
- H - Electricity
- H05B - Electric heating; electric light sources not otherwise provided for; circuit arrangements for electric light sources, in general
- H05B 45/54 - Circuit arrangements for operating light-emitting diodes [LED] responsive to LED life; Protective circuits in a series array of LEDs
Patent holdings for IPC class H05B 45/54
Total number of patents in this class: 93
10-year publication summary
0
|
0
|
0
|
0
|
4
|
18
|
26
|
24
|
23
|
6
|
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 |
11 |
Rohm Co., Ltd. | 5843 |
7 |
Koito Manufacturing Co., Ltd. | 1991 |
6 |
Hella GmbH & Co. KGaA | 1392 |
4 |
Infineon Technologies AG | 8189 |
3 |
Hayward Industries, Inc. | 669 |
3 |
Paragon Semiconductor Lighting Technology Co., Ltd. | 36 |
3 |
Apple Inc. | 50209 |
2 |
Seiko Epson Corporation | 18724 |
2 |
Texas Instruments Incorporated | 19376 |
2 |
Denso Corporation | 23338 |
2 |
eldoLAB Holding B.V. | 189 |
2 |
Ledvance LLC | 336 |
2 |
Seasonal Specialties, LLC | 84 |
2 |
Spectra Harvest Lighting, LLC | 3 |
2 |
Zkw Group GmbH | 578 |
2 |
Intelesol, LLC | 38 |
2 |
Hewlett-Packard Development Company, L.P. | 28538 |
1 |
Denso Wave Incorporated | 365 |
1 |
Hyundai Motor Company | 19021 |
1 |
Other owners | 33 |