H05B 45/30
Driver circuits
H05B45/30 (Driver circuits) appears on 10,719 US grants and 11,933 published applications in this corpus.
Search patents in H05B- Granted patents
- 10,719
- Published applications
- 11,933
- Assignees
- 2,729
- Inventors
- 13,013
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 7 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 9 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 10 | 0 |
| 1995 | 9 | 0 |
| 1996 | 7 | 0 |
| 1997 | 8 | 0 |
| 1998 | 13 | 0 |
| 1999 | 12 | 0 |
| 2000 | 24 | 0 |
| 2001 | 23 | 4 |
| 2002 | 41 | 52 |
| 2003 | 39 | 63 |
| 2004 | 36 | 97 |
| 2005 | 49 | 145 |
| 2006 | 89 | 169 |
| 2007 | 100 | 204 |
| 2008 | 122 | 299 |
| 2009 | 146 | 366 |
| 2010 | 196 | 528 |
| 2011 | 283 | 606 |
| 2012 | 469 | 797 |
| 2013 | 561 | 817 |
| 2014 | 774 | 931 |
| 2015 | 880 | 899 |
| 2016 | 971 | 777 |
| 2017 | 871 | 727 |
| 2018 | 757 | 645 |
| 2019 | 837 | 703 |
| 2020 | 667 | 634 |
| 2021 | 586 | 567 |
| 2022 | 542 | 479 |
| 2023 | 475 | 460 |
| 2024 | 439 | 406 |
| 2025 | 364 | 319 |
| 2026 | 267 | 239 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H05B 45/37Converter circuits6,986
- H05B 45/32Pulse-control circuits1,945
- H05B 45/395Linear regulators1,822
- H05B 45/357Specially adapted for retrofit led light sources1,003
- H05B 45/345Current stabilisation722
- H05B 45/355Power factor correction [pfc]485
- H05B 45/31Phase-control circuits406
- H05B 45/36Circuits for reducing or suppressing harmonics, ripples or electromagnetic interferences [emi]333
Recent patents
- Power converter6 Oct 2026US 12,756,307 B2Novatek Microelectronics Corp.
- Energy supply for a light having a matrix of LEDs, in particular an LED motor vehicle headlight6 Oct 2026US 12,757,302 B2Hella GmbH & Co. KGaA
- Micro LED pixel circuit driven by PWM6 Oct 2026US 12,757,303 B2Seoul National University R&Db Foundation
- Four wire-to-two wire lamp control signal transmission system and method6 Oct 2026US 12,757,307 B2Guangzhou Rising Dragon Recreation Industrial Co., Ltd.
- Photon source for promoting the growth and maturation rate of members of the plantae and protista kingdoms29 Sep 2026US 12,745,716 B2Agnuity, Inc.
- Light Emitting Devices and Lighting Systems8 Oct 2026US 2026/0309317 A1Bridgelux, Inc.
- Ripple control of an led driving circuit8 Oct 2026US 2026/0313767 A1Signify Holding B. V.
- Method and apparatus for an adaptable vehicle light fixture8 Oct 2026US 2026/0313768 A1Nacho LED LLC
- Circuit for driving a led string8 Oct 2026US 2026/0313769 A1ams-OSRAM International GmbH
- Lighting device control system8 Oct 2026US 2026/0313774 A1Zhengzhou Dewenwils Network Technology Co., Ltd.
Most cited
By later US patents
- Illumination components1,698US 6,211,626 B1Color Kinetics Incorporated · 2001
- Multicolored LED lighting method and apparatus1,174US 6,016,038 AColor Kinetics Incorporated · 2000
- Universal lighting network methods and systems1,007US 6,548,967 B1Color Kinetics Incorporated · 2003
- Lighting entertainment system987US 6,166,496 AColor Kinetics Incorporated · 2000
- Lighting device and lighting method856US 7,213,940 B1LED Lighting Fixtures, Inc. · 2007