- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 41/292 - Arrangements for protecting lamps or circuits against abnormal operating conditions
Patent holdings for IPC class H05B 41/292
Total number of patents in this class: 186
10-year publication summary
|
8
|
6
|
4
|
8
|
0
|
2
|
3
|
2
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| OSRAM GmbH | 2388 |
39 |
| Koninklijke Philips Electronics N.V. | 9962 |
36 |
| Philips Intellectual Property & Standards GmbH | 1978 |
16 |
| Seiko Epson Corporation | 19281 |
12 |
| Tridonic GmbH & Co KG | 1001 |
10 |
| Osram AG | 302 |
9 |
| General Electric Company | 13830 |
6 |
| Koninklijke Philips N.V. | 24610 |
5 |
| Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | 89 |
5 |
| Tridonic AG | 51 |
3 |
| Ushio Denki Kabushiki Kaisha | 1175 |
3 |
| Lumlux Corp | 12 |
3 |
| Lam Research Corporation | 5207 |
2 |
| Automotive Lighting Reutlingen GmbH | 60 |
2 |
| Shenzhen Techone Tech Co., Ltd. | 8 |
2 |
| Panasonic Corporation | 20166 |
1 |
| Matsushita Electric Works, Ltd. | 134 |
1 |
| Ericsson | 21622 |
1 |
| Murata Manufacturing Co., Ltd. | 24369 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 31022 |
1 |
| Other owners | 28 |