H03K 17/615
In a darlington configuration
Official title: in a Darlington configuration
H03K17/615 (In a darlington configuration) appears on 73 US grants and 13 published applications in this corpus.
Search patents in H03K- Granted patents
- 73
- Published applications
- 13
- Assignees
- 52
- Inventors
- 136
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 8 | 0 |
| 1988 | 6 | 0 |
| 1989 | 2 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 3 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 2 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 4 |
| 2013 | 0 | 0 |
| 2014 | 2 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and component for power conversion1 Sep 2026US 12,726,122 B2The United States of America as represented by the Secretary of the Navy
- Darlington transistor drive circuit, method and switching power supply management chip28 May 2024US 11,996,835 B2Fremont Micro Devices Corporation
- Scheme to reduce static power consumption in analog controller based power converters requiring an external high voltage startup circuit19 Jan 2021US 10,897,192 B1STMicroelectronics International N. V.
- High-voltage heavy-current drive circuit applied in power factor corrector17 Nov 2015US 9,190,897 B2Csmc Technologies Fab2 Co., Ltd.
- Electronic switching device1 Jul 2014US 8,766,672 B2NXP B. V.
- System and component for power conversion4 Dec 2025US 2025/0373160 A1USA AS Represented By the Sec of the Navy
- Darlington transistor drive circuit, method and switching power supply management chip21 Sep 2023US 2023/0299766 A1Fremont Micro Devices Corporation
- Sensor System5 May 2016US 2016/0123776 A1Delphi International Operations Luxembourg S.A R.L.
- High-voltage heavy-current drive circuit applied in power factor corrector2 Oct 2014US 2014/0293664 A1Csmc Technologies Fab2 Co., Ltd.
- Monolithic Darlington with Intermediate Base Contact20 Dec 2012US 2012/0319301 A1Diodes Zetex Semiconductors Limited
Most cited
By later US patents
- Integrated circuit incorporating low voltage and high voltage semiconductor devices168US 4,412,142 AGeneral Electric Company · 1983
- Drive circuit for use with voltage-drive semiconductor device31US 4,949,213 AFuji Electric Co., Ltd. · 1990
- Write driver circuit25US 5,638,012 AHitachi Computer Engineering Co., Ltd. · 1997
- Coil current limiting feature for an ignition coil driver module22US 6,100,728 ADelco Electronics Corporation · 2000
- Semiconductor switch circuit20US 4,125,787 AHitachi, Ltd. · 1978