- All sections
- H - Electricity
- H05B - Electric heating; electric light sources not otherwise provided for; circuit arrangements for electric light sources, in general
- H05B 41/392 - Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
Patent holdings for IPC class H05B 41/392
Total number of patents in this class: 303
10-year publication summary
|
20
|
8
|
14
|
18
|
16
|
9
|
1
|
4
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Koninklijke Philips Electronics N.V. | 10932 |
33 |
| Lutron Technology Company LLC | 2421 |
26 |
| OSRAM GmbH | 2412 |
20 |
| Seiko Epson Corporation | 18975 |
10 |
| Sharp Kabushiki Kaisha | 18871 |
10 |
| TridonicAtco GmbH & Co. KG | 52 |
9 |
| Philips Intellectual Property & Standards GmbH | 2122 |
9 |
| Lutron Electronics Co., Inc. | 538 |
8 |
| General Electric Company | 17803 |
7 |
| Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | 137 |
7 |
| Tridonic GmbH & Co KG | 972 |
6 |
| Signify Holding B.V. | 7225 |
6 |
| Panasonic Electric Works Co., Ltd. | 753 |
5 |
| Panasonic Intellectual Property Management Co., Ltd. | 29620 |
5 |
| Osram AG | 302 |
5 |
| Leviton Manufacturing Co., Inc. | 823 |
4 |
| MERSTech, Inc. | 31 |
4 |
| Panasonic Corporation | 20327 |
3 |
| Koninklijke Philips N.V. | 23945 |
3 |
| Boe Technology Group Co., Ltd. | 38777 |
3 |
| Other owners | 120 |