H02M 7/5157
Wherein the extinguishing of every commutation element will be obtained by means
Official title: {wherein the extinguishing of every commutation element will be obtained by means of a commutation inductance, by starting another main commutation element in series with the first}
H02M7/5157 (Wherein the extinguishing of every commutation element will be obtained by means) appears on 14 US grants and 1 published applications in this corpus.
Search patents in H02M- Granted patents
- 14
- Published applications
- 1
- Assignees
- 10
- Inventors
- 20
- Latest grant
- 5 Jan 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Solid state regulator and circuit breaker for high-power DC bus distributions5 Jan 2021US 10,886,835 B2Raytheon Company
- Electric power converter15 May 1990US 4,926,306 AHitachi, Ltd.
- Inverter1 Dec 1987US 4,710,862 AMitsubishi Denki Kabushiki Kaisha
- Fault protection for GTO voltage-source inverters11 Aug 1987US 4,686,618 AGeneral Electric Company
- High frequency inverter circuit for melting and induction heating20 Jan 1987US 4,638,138 AWestinghouse Electric Corp.
Most cited
By later US patents
- Power conversion apparatus28US 4,231,083 AHitachi, Ltd. · 1980
- Electric power converter22US 4,926,306 AHitachi, Ltd. · 1990
- X-Ray diagnostic generator with an inverter supplying the high-tension transformer15US 4,295,049 ASiemens Aktiengesellschaft · 1981
- High frequency inverter circuit for melting and induction heating13US 4,638,138 AWestinghouse Electric Corp. · 1987
- High power electric generator, especially adapted for powering processes involving discharge in a rarified atmosphere8US 4,446,560 A1984