H02M 7/517
With special starting equipment
Official title: with special starting equipment
H02M7/517 (With special starting equipment) appears on 23 US grants and 5 published applications in this corpus.
Search patents in H02M- Granted patents
- 23
- Published applications
- 5
- Assignees
- 17
- Inventors
- 32
- Latest grant
- 10 May 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 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 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 1 | 0 |
| 2017 | 2 | 1 |
| 2018 | 0 | 0 |
| 2019 | 2 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Device and process for detecting and mitigating reverse power-flow10 May 2022US 11,329,551 B2
- Device and process for detecting and mitigating reverse power-flow16 Jun 2020US 10,686,369 B1
- Start-up of HVDC converters31 Dec 2019US 10,523,132 B2General Electric Technology GmbH
- Valley to valley switching in quasi-resonant mode for driver26 Mar 2019US 10,243,472 B2Infineon Technologies Austria AG
- Switching converter23 May 2017US 9,660,518 B2Semiconductor Energy Laboratory Co.Ltd.
- Device and process for detecting and mitigating reverse power-flow28 Jan 2021US 2021/0028693 A1
- Start-up of hvdc converters16 Nov 2017US 2017/0331393 A1General Electric Technology GmbH
- Valley to valley switching in quasi-resonant mode for driver27 Aug 2015US 2015/0244272 A1Infineon Technologies Austria AG
- Valley to valley switching in quasi-resonant mode for driver27 Aug 2015US 2015/0244273 A1Infineon Technologies Austria AG
- Switching converter7 Nov 2013US 2013/0294120 A1Semiconductor Energy Laboratory Co.Ltd.
Most cited
By later US patents
- Auxiliary commutation circuit for an inverter29US 4,204,268 AUnited Technologies Corporation · 1980
- Inverter starting system21US 4,195,233 ASiemens Aktiengesellschaft · 1980
- Static power frequency converter16US 4,626,978 ASaphymo-Stel · 1986
- Emergency standby system for automatic transfer from utility power to a battery powered system15US 4,167,680 AChloride Electro Networks · 1979
- Circuit arrangement for starting up a converter having forced commutation with correct phase11US 4,079,443 ASiemens Aktiengesellschaft · 1978