- 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: 186
10-year publication summary
16
|
6
|
10
|
10
|
0
|
2
|
0
|
0
|
1
|
1
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
OSRAM GmbH | 2392 |
32 |
Koninklijke Philips Electronics N.V. | 10161 |
28 |
Seiko Epson Corporation | 19225 |
26 |
Osram AG | 302 |
12 |
Philips Intellectual Property & Standards GmbH | 2007 |
11 |
OSRAM SYLVANIA Inc. | 686 |
6 |
Ushio Denki Kabushiki Kaisha | 1172 |
6 |
General Electric Company | 17062 |
5 |
Tridonic AG | 51 |
5 |
Panasonic Intellectual Property Management Co., Ltd. | 30769 |
3 |
Automotive Lighting Reutlingen GmbH | 60 |
3 |
Matsushita Electric Works, Ltd. | 138 |
2 |
Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | 91 |
2 |
Lumileds LLC | 1893 |
2 |
Tridonic GmbH & Co KG | 999 |
2 |
Marelli Automotive Lighting Reutlingen (Germany) GmbH | 75 |
2 |
Matsushita Electric Industrial Co., Ltd. | 1979 |
1 |
Robert Bosch GmbH | 42354 |
1 |
Koninklijke Philips N.V. | 24468 |
1 |
U.S. Philips Corporation | 423 |
1 |
Other owners | 35 |