H05B 41/388
For a transition from glow to arc
Official title: {for a transition from glow to arc}
H05B41/388 (For a transition from glow to arc) appears on 152 US grants and 95 published applications in this corpus.
Search patents in H05B- Granted patents
- 152
- Published applications
- 95
- Assignees
- 71
- Inventors
- 257
- Latest grant
- 21 Aug 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 9 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 12 | 0 |
| 2001 | 8 | 1 |
| 2002 | 8 | 13 |
| 2003 | 10 | 14 |
| 2004 | 12 | 8 |
| 2005 | 7 | 10 |
| 2006 | 12 | 6 |
| 2007 | 2 | 6 |
| 2008 | 4 | 5 |
| 2009 | 5 | 7 |
| 2010 | 3 | 7 |
| 2011 | 4 | 6 |
| 2012 | 8 | 3 |
| 2013 | 6 | 2 |
| 2014 | 1 | 1 |
| 2015 | 3 | 3 |
| 2016 | 4 | 2 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
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Most cited
By later US patents
- High efficiency electronic ballast for high intensity discharge lamps121US 5,677,602 A1997
- Discharge lamp driving106US 5,932,976 AMatsushita Electric Works R&D Laboratory, Inc. · 1999
- Operating circuit for a direct current discharge lamp65US 4,749,913 AGeneral Electric Company · 1988
- Ignition scheme for a high intensity discharge lamp42US 6,160,362 APhilips Electronics North America Corporation · 2000
- High intensity discharge lamp ballast and lighting system40US 6,075,326 A2000