H05B 41/2883
The controlled element being a dc/ac converter in the final stage
Official title: {the controlled element being a DC/AC converter in the final stage, e.g. by harmonic mode starting}
H05B41/2883 (The controlled element being a dc/ac converter in the final stage) appears on 214 US grants and 161 published applications in this corpus.
Search patents in H05B- Granted patents
- 214
- Published applications
- 161
- Assignees
- 81
- Inventors
- 304
- Latest grant
- 7 Jan 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 13 | 0 |
| 2001 | 11 | 3 |
| 2002 | 11 | 12 |
| 2003 | 12 | 5 |
| 2004 | 6 | 9 |
| 2005 | 8 | 12 |
| 2006 | 13 | 14 |
| 2007 | 8 | 8 |
| 2008 | 8 | 19 |
| 2009 | 8 | 14 |
| 2010 | 10 | 22 |
| 2011 | 16 | 14 |
| 2012 | 20 | 7 |
| 2013 | 12 | 5 |
| 2014 | 6 | 5 |
| 2015 | 6 | 5 |
| 2016 | 5 | 3 |
| 2017 | 2 | 2 |
| 2018 | 4 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
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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
- Power control circuit for discharge lamp and method of operating same99US 4,928,038 AGeneral Electric Company · 1990
- Discharge lamp auxiliary circuit with dI/dt switching control68US 4,060,752 AGeneral Electric Company · 1977
- Discharge lamp ballast with resonant starting62US 4,053,813 AGeneral Electric Company · 1977