H03K 17/292
In thyristor, unijunction transistor or programmable unijunction transistor switches
Official title: in thyristor, unijunction transistor or programmable unijunction transistor switches
H03K17/292 (In thyristor, unijunction transistor or programmable unijunction transistor switches) appears on 71 US grants and 9 published applications in this corpus.
Search patents in H03K- Granted patents
- 71
- Published applications
- 9
- Assignees
- 44
- Inventors
- 103
- Latest grant
- 9 Jul 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 13 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 6 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 3 |
| 2006 | 2 | 0 |
| 2007 | 1 | 2 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 2 |
| 2019 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Programmable SCR firing system9 Jul 2019US 10,348,289 B2The United States of America as represented by the Secretary of the Navy
- Electrical system and method for selective control of downhole devices14 May 2019US 10,287,851 B2Halliburton Energy Services.Inc.
- Leakage current-based delay circuit30 May 2017US 9,667,241 B2Poshtech Academy-Industry Foundation
- Gate drive unit and method for controlling a gate drive unit26 Jul 2016US 9,401,708 B2General Electric Company
- Thermal protection of a switch26 Jan 2010US 7,652,864 B2STMicroelectronics S.r.l.
- Programmable SCR Firing System2 Aug 2018US 2018/0219544 A1The United States of America as represented by the Secretary of the Navy
- Electrical System and Method for Selective Control of Downhole Devices18 Jan 2018US 2018/0016865 A1Halliburton Energy Services.Inc.
- Leakage current-based delay circuit18 Aug 2016US 2016/0241229 A1Postech Academy-Industry Foundation
- Gate drive unit and method for controlling a gate drive unit26 Nov 2015US 2015/0341028 A1General Electric Company
- Thermal protection of a switch6 Dec 2007US 2007/0279070 A1STMicroelectronics S.r.l.
Most cited
By later US patents
- AC Solid-state circuit breaker70US 4,245,184 AWestinghouse Electric Corp. · 1981
- Switch assembly, electric machine having the switch assembly, and method of controlling the same64US 7,183,741 B2A. O. Smith Corporation · 2007
- Switch assembly, electric machine having the switch assembly, and method of controlling the same56US 6,989,649 B2A. O. Smith Corporation · 2006
- Light generating apparatus for curing dental restorative composites55US 4,450,139 ASolid State Systems, Inc. · 1984
- Accessory for a garage door opener54US 4,064,404 AChamberlain Manufacturing Corporation · 1977