H05B 41/2824
Using control circuits for the switching element
Official title: {using control circuits for the switching element (H05B41/2822 takes precedence)}
H05B41/2824 (Using control circuits for the switching element) appears on 203 US grants and 167 published applications in this corpus.
Search patents in H05B- Granted patents
- 203
- Published applications
- 167
- Assignees
- 125
- Inventors
- 311
- Latest grant
- 23 Apr 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 5 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 10 | 0 |
| 2001 | 9 | 0 |
| 2002 | 7 | 8 |
| 2003 | 7 | 10 |
| 2004 | 8 | 20 |
| 2005 | 13 | 20 |
| 2006 | 15 | 20 |
| 2007 | 14 | 30 |
| 2008 | 24 | 23 |
| 2009 | 12 | 13 |
| 2010 | 16 | 6 |
| 2011 | 14 | 4 |
| 2012 | 6 | 3 |
| 2013 | 5 | 3 |
| 2014 | 4 | 2 |
| 2015 | 3 | 1 |
| 2016 | 2 | 1 |
| 2017 | 2 | 2 |
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Converter with control loop23 Apr 2019US 10,271,389 B2Signify Holding B. V.
- N-sine wave inverter22 May 2018US 9,979,321 B2Casco Products Corporation
- Enhanced variable control, current sensing drivers with zeta scan10 Oct 2017US 9,788,402 B2Luxor Scientific, Inc
- Digital controller for an electronic ballast21 Feb 2017US 9,578,727 B2
- Electronic ballast circuit for lamps10 May 2016US 9,338,857 B2Genesys Global, LLC
- Fluid treatment device and lighting circuit3 Oct 2024US 2024/0334561 A1Ushio Denki Kabushiki Kaisha
- N-sine wave inverter30 Nov 2017US 2017/0346414 A1Casco Products Corporation
- Converter with control loop10 Aug 2017US 2017/0231036 A1Philips Lighting Holding B.V.
- Enhanced variable control, current sensing drivers29 Sep 2016US 2016/0286635 A1Green Clean Scientific, Inc.
- Electronic Ballast Circuit For Lamps28 May 2015US 2015/0145429 A1Genesys Systems, LLC
Most cited
By later US patents
- High efficiency two stage inverter210US 7,218,541 B2Dell Products L. P. · 2007
- Liquid crystal display having an improved lighting device166US 6,636,190 B2Hitachi Device Engineering Co., Ltd. · 2003
- Apparatus for controlling a discharge lamp in a backlighted display132US 6,114,814 AMonolithic Power Systems, Inc. · 2000
- Liquid crystal display device having an improved lighting device124US 7,138,974 B2Hitachi Device Engineering Co., Ltd. · 2006
- Fluorescent-lamp excitation circuit using a piezoelectric acoustic transformer and methods for using same120US 5,548,189 ALinear Technology Corporation · 1996