- All sections
- H - Electricity
- H05B - Electric heating; electric light sources not otherwise provided for; circuit 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: 191
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 | 2412 |
39 |
| Koninklijke Philips Electronics N.V. | 10932 |
37 |
| Philips Intellectual Property & Standards GmbH | 2122 |
16 |
| Seiko Epson Corporation | 18975 |
12 |
| Tridonic GmbH & Co KG | 972 |
10 |
| Osram AG | 302 |
9 |
| General Electric Company | 17803 |
6 |
| Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | 137 |
6 |
| Koninklijke Philips N.V. | 23945 |
5 |
| Tridonic AG | 51 |
3 |
| Ushio Denki Kabushiki Kaisha | 1140 |
3 |
| Lumlux Corp | 12 |
3 |
| Lam Research Corporation | 4983 |
2 |
| Automotive Lighting Reutlingen GmbH | 60 |
2 |
| Shenzhen Techone Tech Co., Ltd. | 8 |
2 |
| Panasonic Corporation | 20327 |
1 |
| Matsushita Electric Works, Ltd. | 180 |
1 |
| Ericsson | 21094 |
1 |
| Hewlett-Packard Development Company, L.P. | 27476 |
1 |
| Murata Manufacturing Co., Ltd. | 23648 |
1 |
| Other owners | 31 |