- All sections
- H - Electricity
- H05B - Electric heating; electric light sources not otherwise provided for; circuit arrangements for electric light sources, in general
- H05B 41/232 - Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps
Patent holdings for IPC class H05B 41/232
Total number of patents in this class: 5
10-year publication summary
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2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
OSRAM GmbH | 2442 |
1 |
Explore Corporation Limited | 5 |
1 |
John W. Kunze | 1 |
1 |
Purespectrum, Inc. | 5 |
1 |
Tridonic GmbH & Co KG | 922 |
1 |
Other owners | 0 |