H03F 3/3071
With asymmetrical driving of the end stage
Official title: {with asymmetrical driving of the end stage}
H03F3/3071 (With asymmetrical driving of the end stage) appears on 104 US grants and 25 published applications in this corpus.
Search patents in H03F- Granted patents
- 104
- Published applications
- 25
- Assignees
- 55
- Inventors
- 161
- Latest grant
- 26 Apr 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 6 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 0 | 1 |
| 2002 | 6 | 2 |
| 2003 | 5 | 2 |
| 2004 | 2 | 4 |
| 2005 | 2 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 2 | 4 |
| 2010 | 4 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 3 |
| 2018 | 3 | 1 |
| 2019 | 2 | 3 |
| 2020 | 1 | 1 |
| 2021 | 2 | 1 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Charge pump circuit and method for voltage conversion26 Apr 2022US 11,316,444 B2Amsag
- Operational amplifier with controllable output modes10 Aug 2021US 11,088,666 B2Microchip Technology Incorporated
- Power amplifier13 Apr 2021US 10,979,008 B2Yamaha Corporation
- Amplification device8 Dec 2020US 10,862,437 B2
- Bootstrapped application arrangement and application to the unity gain follower3 Sep 2019US 10,404,222 B2Harman International Industries, Incorporated
- Inverter circuit arrangement1 Apr 2021US 2021/0099101 A1Ams AG
- Operational amplifier with controllable output modes16 Apr 2020US 2020/0119706 A1Microchip Technology Incorporated
- Power Amplifier26 Dec 2019US 2019/0393848 A1Yamaha Corporation
- Amplification device7 Nov 2019US 2019/0341890 A1Onkyo Corporation
- Bootstrapped application arrangement and application to the unity gain follower28 Feb 2019US 2019/0068134 A1Harman International Industries, Incorporated
Most cited
By later US patents
- Active bias circuit for operating push-pull amplifiers in class A mode40US 3,995,228 AThreshold Corporation · 1976
- Amplifier and display apparatus employing the same22US 5,546,048 AHitachi, Ltd. · 1996
- High gain, low drift operational amplifier for sample and hold circuit17US 4,634,993 ABurr-Brown Corporation · 1987
- Efficient bipolar regulated power supply16US 4,207,475 AKepco, Inc. · 1980
- Opto-isolated bias circuit for operating push-pull amplifiers in class A and class AB modes16US 4,752,745 AThreshold Corporation · 1988