- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 41/288 - 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 with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
Patent holdings for IPC class H05B 41/288
Total number of patents in this class: 161
10-year publication summary
|
6
|
10
|
10
|
0
|
2
|
0
|
0
|
1
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| OSRAM GmbH | 2301 |
29 |
| Seiko Epson Corporation | 19928 |
26 |
| Koninklijke Philips Electronics N.V. | 8208 |
21 |
| Osram AG | 290 |
12 |
| OSRAM SYLVANIA Inc. | 669 |
6 |
| Ushio Denki Kabushiki Kaisha | 1217 |
6 |
| Philips Intellectual Property & Standards GmbH | 1748 |
6 |
| Tridonic AG | 51 |
5 |
| General Electric Company | 13815 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 33248 |
3 |
| Automotive Lighting Reutlingen GmbH | 60 |
3 |
| Lumileds LLC | 755 |
2 |
| Tridonic GmbH & Co KG | 1028 |
2 |
| Marelli Automotive Lighting Reutlingen (Germany) GmbH | 70 |
2 |
| Robert Bosch GmbH | 43449 |
1 |
| Koninklijke Philips N.V. | 25470 |
1 |
| U.S. Philips Corporation | 209 |
1 |
| Murata Manufacturing Co., Ltd. | 25398 |
1 |
| Amazon Technologies, Inc. | 27626 |
1 |
| LG Innotek Co., Ltd. | 8122 |
1 |
| Other owners | 29 |