H05B 45/36
Circuits for reducing or suppressing harmonics, ripples or electromagnetic interferences [emi]
Official title: Circuits for reducing or suppressing harmonics, ripples or electromagnetic interferences [EMI]
H05B45/36 (Circuits for reducing or suppressing harmonics, ripples or electromagnetic interferences [emi]) appears on 333 US grants and 376 published applications in this corpus.
Search patents in H05B- Granted patents
- 333
- Published applications
- 376
- Assignees
- 194
- Inventors
- 615
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 3 |
| 2003 | 0 | 0 |
| 2004 | 0 | 3 |
| 2005 | 0 | 2 |
| 2006 | 2 | 2 |
| 2007 | 2 | 3 |
| 2008 | 2 | 5 |
| 2009 | 2 | 3 |
| 2010 | 3 | 14 |
| 2011 | 5 | 10 |
| 2012 | 7 | 14 |
| 2013 | 14 | 13 |
| 2014 | 8 | 21 |
| 2015 | 20 | 31 |
| 2016 | 26 | 29 |
| 2017 | 39 | 28 |
| 2018 | 22 | 27 |
| 2019 | 32 | 37 |
| 2020 | 29 | 19 |
| 2021 | 23 | 25 |
| 2022 | 24 | 17 |
| 2023 | 21 | 25 |
| 2024 | 16 | 17 |
| 2025 | 16 | 12 |
| 2026 | 14 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multi-mode dimming and color temperature adjustment power supply based on PWM15 Sep 2026US 12,739,953 B2Zhuhai Shengchang Electronics Co., Ltd.
- Light emitting diode (LED) control drive system for sleep aid device8 Sep 2026US 12,728,226 B1
- Software filter for noise reduction in lighting controller8 Sep 2026US 12,733,072 B2UnitX, Inc.
- LED lamp, integrated circuit and power supply module thereof21 Jul 2026US 12,687,265 B2Jiaxing Super Lighting Electric Appliance Co., Ltd
- Boost converter14 Jul 2026US 12,683,503 B2Rohm Co., Ltd.
- Ripple control of an led driving circuit8 Oct 2026US 2026/0313767 A1Signify Holding B. V.
- Device, system and methods for a constant current mode in an input-output pad24 Sep 2026US 2026/0292950 A1Microchip Technology Incorporated
- An led driving arrangement24 Sep 2026US 2026/0292951 A1Signify Holding B. V.
- Smart light emitting diode system17 Sep 2026US 2026/0282189 A1Seeoyon E-Hwa Co., Ltd.
- Lighting device with current self-balancing function17 Sep 2026US 2026/0282190 A1Xiamen PVTECH Co., Ltd.
Most cited
By later US patents
- Power supply for light emitting diode array454US 5,661,645 A1997
- Light emitting element with a plurality of cells bonded, method of manufacturing the same, and light emitting device using the same115US 7,871,839 B2Seoul Opto Device Co., Ltd. · 2011
- LED light module and series connected light modules102US 7,045,965 B21 Energy Solutions, Inc. · 2006
- Reduction of harmonic distortion for LED loads88US 8,373,363 B2Once Innovations, Inc. · 2013
- Apparatus, method and system for providing AC line power to lighting devices88US 8,569,956 B2Point Somee Limited Liability Company · 2013