- 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: 943
10-year publication summary
|
1
|
7
|
16
|
108
|
148
|
163
|
156
|
140
|
135
|
89
|
| 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 |
40 |
| Samsung Electronics Co., Ltd. | 157557 |
29 |
| Rohm Co., Ltd. | 6824 |
29 |
| Koito Manufacturing Co., Ltd. | 2442 |
22 |
| Valeo Vision | 1744 |
22 |
| ERP Power LLC | 88 |
17 |
| Xiamen Eco Lighting Co. Ltd. | 282 |
17 |
| Creeled, Inc. | 971 |
17 |
| Lumileds Singapore Pte. Ltd. | 1261 |
17 |
| Lumileds LLC | 784 |
14 |
| ABL IP Holding LLC | 1890 |
12 |
| LX Semicon Co., Ltd. | 713 |
12 |
| Texas Instruments Incorporated | 19663 |
10 |
| DMF, Inc. | 138 |
10 |
| Xiamen PVTECH Co., Ltd. | 193 |
10 |
| Zhuhai Shengchang Electronics Co., Ltd. | 55 |
10 |
| Novatek Microelectronics Corp. | 1449 |
9 |
| Xiamen Leedarson Lighting Co.Ltd. | 103 |
9 |
| Ams-osram International GmbH | 1644 |
9 |
| Panasonic Intellectual Property Management Co., Ltd. | 33911 |
7 |
| Other owners | 621 |