- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 47/21 - Responsive to malfunctions or to light source lifeCircuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant for protection of two or more light sources connected in parallel
Patent holdings for IPC class H05B 47/21
Total number of patents in this class: 72
10-year publication summary
|
0
|
0
|
2
|
4
|
13
|
15
|
9
|
16
|
10
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Signify Holding B.V. | 7563 |
9 |
| Tridonic GmbH & Co KG | 1007 |
5 |
| BNSF Railway Company | 423 |
4 |
| Mate, LLC | 40 |
4 |
| Lutron Technology Company LLC | 2549 |
4 |
| Hexmodal Technologies LLC | 7 |
3 |
| Magtech Industries Corporation | 16 |
2 |
| Schreder, S.A. | 291 |
2 |
| Valeo Vision | 1526 |
2 |
| Hotalux, Ltd. | 97 |
2 |
| Savant Systems, Inc. | 256 |
2 |
| Xiamen Leedarson Lighting Co.Ltd. | 103 |
2 |
| Ubicquia, Inc. | 170 |
2 |
| Samsung Electronics Co., Ltd. | 146346 |
1 |
| Canon Inc. | 39960 |
1 |
| Rohm Co., Ltd. | 6459 |
1 |
| ZTE Corporation | 42486 |
1 |
| Beghelli S.p.A. | 115 |
1 |
| Hayward Industries, Inc. | 669 |
1 |
| Herc Rentals Inc. | 9 |
1 |
| Other owners | 22 |