- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 47/20 - 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
Patent holdings for IPC class H05B 47/20
Total number of patents in this class: 221
10-year publication summary
|
5
|
9
|
10
|
28
|
30
|
34
|
35
|
21
|
27
|
20
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Signify Holding B.V. | 8030 |
26 |
| Koito Manufacturing Co., Ltd. | 2442 |
11 |
| Lutron Technology Company LLC | 2748 |
11 |
| Tridonic GmbH & Co KG | 1037 |
6 |
| Panasonic Intellectual Property Management Co., Ltd. | 33911 |
5 |
| M3 Innovation, LLC | 17 |
5 |
| LG Innotek Co., Ltd. | 8453 |
4 |
| HLI Solutions, Inc. | 162 |
4 |
| Rohm Co., Ltd. | 6824 |
3 |
| ABL IP Holding LLC | 1890 |
3 |
| Grote Industries, LLC | 61 |
3 |
| Nippon Seiki Co., Ltd. | 1011 |
3 |
| Pass & Seymour, Inc. | 177 |
3 |
| Schreder, S.A. | 301 |
3 |
| Sony Semiconductor Solutions Corporation | 11551 |
3 |
| Valeo Vision | 1744 |
3 |
| Xiamen PVTECH Co., Ltd. | 193 |
3 |
| Eaton Intelligent Power Limited | 6236 |
3 |
| Hotalux, Ltd. | 100 |
3 |
| Nidec Precision Corporation | 39 |
3 |
| Other owners | 113 |