- 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: 212
10-year publication summary
|
13
|
8
|
6
|
4
|
8
|
0
|
2
|
3
|
2
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Koninklijke Philips Electronics N.V. | 13133 |
44 |
| OSRAM GmbH | 2442 |
39 |
| Philips Intellectual Property & Standards GmbH | 2395 |
22 |
| Seiko Epson Corporation | 18724 |
15 |
| Tridonic GmbH & Co KG | 922 |
10 |
| Osram AG | 305 |
9 |
| Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | 166 |
7 |
| General Electric Company | 18133 |
6 |
| Koninklijke Philips N.V. | 22975 |
5 |
| Tridonic AG | 52 |
3 |
| Ushio Denki Kabushiki Kaisha | 1088 |
3 |
| Lumlux Corp | 13 |
3 |
| Lam Research Corporation | 4775 |
2 |
| Automotive Lighting Reutlingen GmbH | 60 |
2 |
| Shenzhen Techone Tech Co., Ltd. | 6 |
2 |
| Panasonic Corporation | 20786 |
1 |
| Matsushita Electric Industrial Co., Ltd. | 4724 |
1 |
| Matsushita Electric Works, Ltd. | 229 |
1 |
| Ericsson | 20417 |
1 |
| Hewlett-Packard Development Company, L.P. | 28538 |
1 |
| Other owners | 35 |