H05B 45/32
Pulse-control circuits
H05B45/32 (Pulse-control circuits) appears on 1,945 US grants and 2,209 published applications in this corpus.
Search patents in H05B- Granted patents
- 1,945
- Published applications
- 2,209
- Assignees
- 885
- Inventors
- 3,369
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 2 |
| 2002 | 11 | 18 |
| 2003 | 7 | 17 |
| 2004 | 6 | 18 |
| 2005 | 7 | 37 |
| 2006 | 25 | 39 |
| 2007 | 24 | 36 |
| 2008 | 28 | 55 |
| 2009 | 29 | 59 |
| 2010 | 26 | 70 |
| 2011 | 34 | 51 |
| 2012 | 77 | 85 |
| 2013 | 79 | 117 |
| 2014 | 89 | 109 |
| 2015 | 92 | 87 |
| 2016 | 90 | 95 |
| 2017 | 133 | 122 |
| 2018 | 124 | 95 |
| 2019 | 129 | 120 |
| 2020 | 99 | 156 |
| 2021 | 138 | 142 |
| 2022 | 155 | 143 |
| 2023 | 131 | 162 |
| 2024 | 135 | 148 |
| 2025 | 128 | 118 |
| 2026 | 119 | 108 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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.
- Automotive modules and methods for controlling thereof22 Sep 2026US 12,742,535 B2ams-OSRAM International GmbH
- Control and monitoring circuitry for illuminated interface22 Sep 2026US 12,745,332 B2Tesla, Inc.
- 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.
- A backlight unit, a vehicle display apparatus and a method of controlling the same1 Oct 2026US 2026/0301700 A1AUMOVIO Germany GmbH
- Multifunction portable illumination system24 Sep 2026US 2026/0287126 A1Immobileyes Inc.
- Methods and systems for selectively activating led groups17 Sep 2026US 2026/0282187 A1Current Lighting Solutions Canada Inc.
Most cited
By later US patents
- 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
- Multicolored LED lighting method and apparatus852US 6,150,774 AColor Kinetics Incorporated · 2000
- Smart light bulb852US 6,528,954 B1Color Kinetics Incorporated · 2003