- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 41/28 - Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters
Patent holdings for IPC class H05B 41/28
Total number of patents in this class: 125
10-year publication summary
|
16
|
6
|
6
|
3
|
1
|
2
|
4
|
1
|
0
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tridonic GmbH & Co KG | 1037 |
11 |
| Koninklijke Philips Electronics N.V. | 7494 |
10 |
| OSRAM GmbH | 2216 |
10 |
| Signify Holding B.V. | 8030 |
5 |
| Seiko Epson Corporation | 20248 |
4 |
| OSRAM SYLVANIA Inc. | 628 |
4 |
| Duke University | 3184 |
4 |
| Immunolight, LLC | 214 |
4 |
| General Electric Company | 13888 |
3 |
| Dialog Semiconductor (UK) Limited | 439 |
3 |
| Ushio Denki Kabushiki Kaisha | 1205 |
3 |
| Osram AG | 286 |
2 |
| ABL IP Holding LLC | 1890 |
2 |
| Goodrich Corporation | 2183 |
2 |
| Infineon Technologies Americas Corp. | 1936 |
2 |
| Lucidity Lights, Inc. | 37 |
2 |
| Panacea Quantum Leap Technology LLC | 30 |
2 |
| Silergy Semiconductor Technology (Hangzhou) LTD | 638 |
2 |
| TridonicAtco GmbH & Co. KG | 24 |
2 |
| Philips Intellectual Property & Standards GmbH | 1639 |
2 |
| Other owners | 46 |