H03K 4/69
Using a semiconductor device operating as an amplifier
Official title: using a semiconductor device operating as an amplifier
H03K4/69 (Using a semiconductor device operating as an amplifier) appears on 109 US grants and 2 published applications in this corpus.
Search patents in H03K- Granted patents
- 109
- Published applications
- 2
- Assignees
- 51
- Inventors
- 116
- Latest grant
- 22 Nov 2016
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 19 | 0 |
| 1977 | 8 | 0 |
| 1978 | 7 | 0 |
| 1979 | 8 | 0 |
| 1980 | 11 | 0 |
| 1981 | 8 | 0 |
| 1982 | 8 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 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 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Current-feedback operational amplifier-based sinusoidal oscillator22 Nov 2016US 9,503,098 B1King Fahd University of Petroleum and Minerals
- Device for the control of a circuit for the vertical deflection of a spot scanning a screen8 Jul 2003US 6,590,353 B2STMicroelectronics S.r.l.
- Method and device for controlling a circuit for the vertical deflection of a spot scanning a screen, in particular for a television set or a computer monitor25 Jun 2002US 6,411,048 B1STMicroelectronics S.r.l.
- Circuit arrangement for producing a vertical frequency deflection current9 Nov 1999US 5,982,115 ADeutsche Thomson-Brandt GmbH
- Vertical deflecting circuit using a raised source voltage23 Jun 1998US 5,770,930 ASanyo Electric Co., Ltd.
Most cited
By later US patents
- High efficiency deflection circuit28US 3,983,452 ARCA Corporation · 1976
- Versatile video CRT display24US 4,361,785 AK&R Engineering Sales Corporation · 1982
- Means and method for optimizing the switching performance of power amplifiers18US 5,107,190 AMotorola, Inc. · 1992
- Circuit arrangement for generating a deflection current through a coil for vertical deflection in a display tube16US 3,934,173 AU. S. Philips Corporation · 1976
- Vertical deflection circuit for electron beams in picture tubes16US 4,686,432 ADeutsche Thomson-Brandt GmbH · 1987