- All sections
- H - Electricity
- H05B - Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general
- H05B 45/325 - Pulse-width modulation [PWM]
Patent holdings for IPC class H05B 45/325
Total number of patents in this class: 808
10-year publication summary
|
0
|
0
|
2
|
14
|
103
|
142
|
160
|
154
|
136
|
94
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Signify Holding B.V. | 7585 |
37 |
| Samsung Electronics Co., Ltd. | 147003 |
28 |
| Rohm Co., Ltd. | 6468 |
28 |
| Koito Manufacturing Co., Ltd. | 2255 |
20 |
| Valeo Vision | 1528 |
20 |
| Xiamen Eco Lighting Co. Ltd. | 282 |
17 |
| Lumileds Singapore Pte. Ltd. | 1272 |
17 |
| ERP Power LLC | 83 |
15 |
| Lumileds LLC | 710 |
14 |
| ABL IP Holding LLC | 1901 |
12 |
| LX Semicon Co., Ltd. | 629 |
12 |
| Creeled, Inc. | 941 |
10 |
| Xiamen Leedarson Lighting Co.Ltd. | 103 |
9 |
| Novatek Microelectronics Corp. | 1342 |
8 |
| DMF, Inc. | 123 |
8 |
| Xiamen PVTECH Co., Ltd. | 148 |
8 |
| Panasonic Intellectual Property Management Co., Ltd. | 31598 |
7 |
| OSRAM Opto Semiconductors GmbH | 3310 |
7 |
| Electronic Theatre Controls, Inc. | 257 |
6 |
| Leedarson Lighting Co., Ltd. | 173 |
6 |
| Other owners | 519 |