H05B 41/42
In two steps only
Official title: in two steps only
H05B41/42 (In two steps only) appears on 109 US grants and 47 published applications in this corpus.
Search patents in H05B- Granted patents
- 109
- Published applications
- 47
- Assignees
- 65
- Inventors
- 171
- Latest grant
- 6 Oct 2015
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 5 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 0 |
| 2002 | 6 | 1 |
| 2003 | 4 | 6 |
| 2004 | 2 | 0 |
| 2005 | 3 | 3 |
| 2006 | 5 | 9 |
| 2007 | 3 | 1 |
| 2008 | 4 | 5 |
| 2009 | 0 | 1 |
| 2010 | 4 | 6 |
| 2011 | 4 | 4 |
| 2012 | 4 | 5 |
| 2013 | 2 | 3 |
| 2014 | 5 | 3 |
| 2015 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Solar panel device6 Oct 2015US 9,151,458 B2Nihon Energy Institute Co., Ltd.
- Dynamic step dimming interface6 Jan 2015US 8,928,255 B2Osram Sylvania Inc.
- Method and apparatus for dimming high intensity discharge lamps23 Dec 2014US 8,917,036 B1General Electric Company
- Power generating lamp and illumination appliance18 Nov 2014US 8,888,312 B2Nihon Energy Institute Co., Ltd.
- Two level lighting ballast10 Jun 2014US 8,749,162 B2Osram Sylvania Inc.
- Controller for a fluorescent lamp27 Nov 2014US 2014/0346977 A1Easy Solution Holdings Limited
- Dynamic step dimming interface11 Sep 2014US 2014/0252970 A1Osram Sylvania Inc.
- Solar panel device4 Sep 2014US 2014/0247583 A1Nihon Energy Institute Co., Ltd.
- High Efficiency 3-Way Halogen Lamp With Single Filament Microprocessor Driven Light Sources7 Nov 2013US 2013/0293103 A1Osram Sylvania Inc.
- Method and Apparatus for Power Control30 May 2013US 2013/0138255 A1Integrated Systems International, LLC
Most cited
By later US patents
- Modular lamp controller107US 6,940,230 B2Hubbell Incorporated · 2005
- Ultraviolet water purification system with variable intensity control93US 5,230,792 A1993
- Exterior high intensity discharge illumination system and method for use74US 5,450,302 AU.S. Army Corps of Engineers as represented by the Secretary of the Army · 1995
- Fluorescent lamp ballast with selectable power levels73US 5,592,054 AGeneral Electric Company · 1997
- System and method for reducing flicker of compact gas discharge lamps at low lamp light output level70US 7,061,191 B2Lutron Electronics Co., Inc. · 2006