H05B 41/245
For a plurality of lamps
Official title: {for a plurality of lamps}
H05B41/245 (For a plurality of lamps) appears on 164 US grants and 88 published applications in this corpus.
Search patents in H05B- Granted patents
- 164
- Published applications
- 88
- Assignees
- 74
- Inventors
- 185
- Latest grant
- 27 Feb 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 17 | 0 |
| 1996 | 10 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 9 | 1 |
| 2002 | 8 | 3 |
| 2003 | 6 | 3 |
| 2004 | 1 | 5 |
| 2005 | 3 | 15 |
| 2006 | 5 | 7 |
| 2007 | 10 | 14 |
| 2008 | 9 | 11 |
| 2009 | 9 | 9 |
| 2010 | 8 | 5 |
| 2011 | 7 | 2 |
| 2012 | 3 | 3 |
| 2013 | 2 | 2 |
| 2014 | 2 | 1 |
| 2015 | 4 | 4 |
| 2016 | 1 | 2 |
| 2017 | 2 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Image forming apparatus that fixes toner image to recording medium using first and second heaters supplied with current during overlapping time periods27 Feb 2024US 11,914,315 B2Canon Kabushiki Kaisha
- Embedded lighting ceiling tiles with an adaptive ceiling luminance distribution21 Mar 2017US 9,603,222 B2Philips Lighting Holding B. V.
- Driving device and illumination system10 Jan 2017US 9,544,980 B2Delta Electronics, Inc.
- Illuminating display systems20 Dec 2016US 9,526,148 B2Nthdegree Technologies Worldwide Inc.
- Illuminating display systems25 Aug 2015US 9,119,244 B2Nthdegree Technologies Worldwide Inc.
- Image forming apparatus that fixes toner image to recording medium using heater26 Jan 2023US 2023/0025489 A1Canon Kabushiki Kaisha
- Driving device and illumination system14 Jul 2016US 2016/0205755 A1Delta Electronics, Inc.
- Embedded lighting ceiling tiles with an adaptive ceiling luminance distribution19 May 2016US 2016/0143117 A1Koninklijke Philips N. V.
- Illuminating Display Systems17 Dec 2015US 2015/0366033 A1Nthdegree Technologies Worldwide Inc.
- Controlled Power Dissipation in a Switch Path in a Lighting System17 Sep 2015US 2015/0264762 A1Cirrus Logic, Inc.
Most cited
By later US patents
- Multiple-light discharge lamp lighting device523US 7,579,785 B2Minebea Co., Ltd. · 2009
- Power distribution for lighting systems168US 5,003,227 A1991
- Lighting system for normal and emergency operation of high intensity discharge lamps87US 4,751,398 AThe Bodine Company, Inc. · 1988
- Electronic lighting ballast71US 7,109,668 B2I.E.P.C. Corp. · 2006
- Gas discharge lamp and power distribution system therefor62US 5,485,057 A1996