H05B 41/2985
Against abnormal lamp operating conditions
Official title: {against abnormal lamp operating conditions}
H05B41/2985 (Against abnormal lamp operating conditions) appears on 195 US grants and 118 published applications in this corpus.
Search patents in H05B- Granted patents
- 195
- Published applications
- 118
- Assignees
- 92
- Inventors
- 320
- Latest grant
- 9 Aug 2016
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 7 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 7 | 0 |
| 1997 | 9 | 0 |
| 1998 | 7 | 0 |
| 1999 | 11 | 0 |
| 2000 | 6 | 0 |
| 2001 | 15 | 2 |
| 2002 | 7 | 11 |
| 2003 | 14 | 12 |
| 2004 | 9 | 13 |
| 2005 | 4 | 5 |
| 2006 | 3 | 5 |
| 2007 | 5 | 8 |
| 2008 | 9 | 7 |
| 2009 | 7 | 5 |
| 2010 | 4 | 18 |
| 2011 | 10 | 12 |
| 2012 | 12 | 12 |
| 2013 | 10 | 2 |
| 2014 | 6 | 3 |
| 2015 | 5 | 2 |
| 2016 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Filament miswire protection in an electronic dimming ballast9 Aug 2016US 9,414,472 B2Lutron Electronics Co., Inc.
- Power circuit for a gas discharge lamp7 Jun 2016US 9,363,873 B2N. V. Nederlandsche Apparatenfabriek Nedap
- Electronic ballast and startup method8 Dec 2015US 9,210,783 B2Koninklijke Philip N.V.
- Relamping circuit17 Nov 2015US 9,192,035 B2General Electric Company
- Fault condition of detection circuit14 Jul 2015US 9,084,304 B2Osram Sylvania Inc.
- T5 lamp end of life protection circuit9 Jun 2016US 2016/0165705 A1General Electric Company
- End of life protection for voltage fed ballast23 Jul 2015US 2015/0208492 A1General Electric Company
- Relamping circuit9 Jul 2015US 2015/0195894 A1General Electric Company
- Power circuit for a gas discharge lamp2 Oct 2014US 2014/0292199 A1N. V. Nederlandsche Apparatenfabriek Nedap
- Filament Miswire Protection In An Electronic Dimming Ballast3 Apr 2014US 2014/0091726 A1Lutron Electronics Co., Inc.
Most cited
By later US patents
- Electronic ballast with interface circuitry for multiple dimming inputs124US 5,691,605 APhilips Electronics North America Corporation · 1997
- Electronic dimming ballast101US 6,452,344 B1Lutron Electronics Co., Inc. · 2002
- Two-wire electronic dimming ballast for gaseous discharge lamps98US 4,392,087 AHoneywell Inc. · 1983
- Ballast containing protection circuit for detecting rectification of arc discharge lamp76US 5,574,335 AOsram Sylvania Inc. · 1996
- Constant voltage dimmable LED driver75US 8,497,637 B22013