- All sections
- H - Electricity
- H05B - Electric heating; electric light sources not otherwise provided for; circuit arrangements for electric light sources, in general
- H05B 41/22 - 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 having an auxiliary starting electrode
Patent holdings for IPC class H05B 41/22
Total number of patents in this class: 2
10-year publication summary
1
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0
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0
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0
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0
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0
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0
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0
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0
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0
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2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Matsushita Electric Works, Ltd. | 229 |
1 |
VON ARDENNE GmbH | 43 |
1 |
Other owners | 0 |