- All sections
- H - Electricity
- H05B - Electric heating; electric light sources not otherwise provided for; circuit arrangements for electric light sources, in general
- H05B 41/285 - Arrangements for protecting lamps or circuits against abnormal operating conditions
Patent holdings for IPC class H05B 41/285
Total number of patents in this class: 117
10-year publication summary
|
7
|
8
|
3
|
5
|
3
|
2
|
2
|
3
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| OSRAM GmbH | 2442 |
16 |
| Tridonic GmbH & Co KG | 922 |
15 |
| Koninklijke Philips Electronics N.V. | 13133 |
12 |
| General Electric Company | 18133 |
6 |
| Osram AG | 305 |
4 |
| ABL IP Holding LLC | 1929 |
3 |
| Dialog Semiconductor Inc. | 266 |
3 |
| Lutron Electronics Co., Inc. | 541 |
3 |
| Koninklijke Philips N.V. | 22975 |
2 |
| Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | 166 |
2 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8635 |
2 |
| OSRAM SYLVANIA Inc. | 742 |
2 |
| Cooper Technologies Company | 664 |
2 |
| Tridonic UK Ltd | 22 |
2 |
| Universal Lighting Technologies, Inc. | 165 |
2 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6132 |
2 |
| Philips Intellectual Property & Standards GmbH | 2395 |
2 |
| Signify Holding B.V. | 6837 |
2 |
| Lutron Technology Company LLC | 2300 |
2 |
| Canon Inc. | 36841 |
1 |
| Other owners | 32 |