- All sections
- H - Electricity
- H05B - Electric heating; electric light sources not otherwise provided for; circuit arrangements for electric light sources, in general
- H05B 41/42 - Controlling the intensity of light discontinuously in two steps only
Patent holdings for IPC class H05B 41/42
Total number of patents in this class: 22
10-year publication summary
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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
|
|---|---|---|
| OSRAM GmbH | 2442 |
4 |
| Koninklijke Philips Electronics N.V. | 13133 |
2 |
| OSRAM SYLVANIA Inc. | 742 |
2 |
| General Electric Company | 18133 |
1 |
| Hewlett-Packard Development Company, L.P. | 28538 |
1 |
| Koninklijke Philips N.V. | 22975 |
1 |
| Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | 166 |
1 |
| ABL IP Holding LLC | 1929 |
1 |
| Deutsche Post AG | 459 |
1 |
| Easy Solution Holdings Limited | 1 |
1 |
| Iwasaki Electric Co., Ltd. | 151 |
1 |
| LightLab Sweden AB | 39 |
1 |
| Philips GmbH | 275 |
1 |
| Singapore Polytechnic | 21 |
1 |
| Gradix Holding Ltd. | 3 |
1 |
| Philips Intellectual Property & Standards GmbH | 2395 |
1 |
| DIRECT ePI | 1 |
1 |
| Other owners | 0 |