H05B 41/2886
Comprising a controllable preconditioner
Official title: {comprising a controllable preconditioner, e.g. a booster}
H05B41/2886 (Comprising a controllable preconditioner) appears on 155 US grants and 124 published applications in this corpus.
Search patents in H05B- Granted patents
- 155
- Published applications
- 124
- Assignees
- 67
- Inventors
- 254
- Latest grant
- 19 Mar 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 7 | 0 |
| 2000 | 6 | 0 |
| 2001 | 8 | 1 |
| 2002 | 7 | 8 |
| 2003 | 11 | 15 |
| 2004 | 11 | 7 |
| 2005 | 5 | 14 |
| 2006 | 13 | 12 |
| 2007 | 11 | 14 |
| 2008 | 8 | 8 |
| 2009 | 10 | 10 |
| 2010 | 2 | 11 |
| 2011 | 8 | 5 |
| 2012 | 11 | 4 |
| 2013 | 5 | 5 |
| 2014 | 3 | 2 |
| 2015 | 5 | 2 |
| 2016 | 0 | 3 |
| 2017 | 3 | 1 |
| 2018 | 1 | 1 |
| 2019 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Discharge lamp driving device, projector, and discharge lamp driving method19 Mar 2019US 10,237,521 B2Seiko Epson Corporation
- Discharge lamp lighting device19 Mar 2019US 10,237,959 B2Ushio Denki Kabushiki Kaisha
- Light device deriving condition of storage circuit6 Nov 2018US 10,123,389 B2Philips Lighting Holding B. V.
- Discharge lamp driving device, projector, and discharge lamp driving method10 Oct 2017US 9,785,041 B2Seiko Epson Corporation
- Discharge lamp lighting apparatus5 Sep 2017US 9,756,711 B2Ushio Denki Kabushiki Kaisha
- Discharge lamp lighting device14 Feb 2019US 2019/0053361 A1Ushio Denki Kabushiki Kaisha
- Light device deriving condition of storage circuit1 Feb 2018US 2018/0035511 A1Philips Lighting Holding B. V.
- Discharge lamp lighting device10 Aug 2017US 2017/0231074 A1Ushio Denki Kabushiki Kaisha
- Discharge lamp lighting apparatus17 Nov 2016US 2016/0338183 A1Ushio Denki Kabushiki Kaisha
- Discharge lamp driving device, projector, and discharge lamp driving method3 Nov 2016US 2016/0320693 A1Seiko Epson Corporation
Most cited
By later US patents
- Three-stage electronic ballast for metal halide lamps180US 6,856,102 B1Hitech Electronics Co., Ltd. · 2005
- Buck-boost function type electronic ballast with bus capacitor current sensing81US 6,278,245 B1Philips Electronics North America Corporation · 2001
- Lighting circuit for high-pressure discharge lamp for vehicles65US 5,142,203 AKoito Manufacturing Co., Ltd. · 1992
- Ballast circuit for high intensity discharge lamps64US 6,181,084 B2EG&G, Inc. · 2001
- Lighting circuit for vehicular discharge lamp54US 5,140,229 AKoito Manufacturing Co., Ltd. · 1992