H03F 3/3081
Duplicated single-ended push-pull arrangements, i.e. bridge circuits
Official title: {Duplicated single-ended push-pull arrangements, i.e. bridge circuits (using FET's H03F3/3061)}
H03F3/3081 (Duplicated single-ended push-pull arrangements, i.e. bridge circuits) appears on 126 US grants and 34 published applications in this corpus.
Search patents in H03F- Granted patents
- 126
- Published applications
- 34
- Assignees
- 75
- Inventors
- 176
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 6 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 8 | 0 |
| 1998 | 5 | 0 |
| 1999 | 8 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 4 |
| 2002 | 5 | 2 |
| 2003 | 5 | 2 |
| 2004 | 2 | 0 |
| 2005 | 0 | 3 |
| 2006 | 3 | 3 |
| 2007 | 2 | 3 |
| 2008 | 0 | 1 |
| 2009 | 3 | 1 |
| 2010 | 2 | 1 |
| 2011 | 1 | 3 |
| 2012 | 4 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 2 |
| 2020 | 3 | 0 |
| 2021 | 0 | 2 |
| 2022 | 2 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 4 |
| 2025 | 1 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Multichannel driver circuitry and operation24 Mar 2026US 12,587,191 B2Cirrus Logic, Inc.
- Clipping prevention in switched mode drivers8 Jul 2025US 12,356,158 B2Cirrus Logic, Inc.
- Multichannel driver circuitry and operation24 Sep 2024US 12,101,085 B1Cirrus Logic, Inc.
- Low power receiver circuit for isolated data communications20 Dec 2022US 11,533,027 B2Analog Devices, Inc.
- Multichannel driver circuitry and operation14 May 2026US 2026/0135558 A1Cirrus Logic International Semiconductor Ltd.
- Multichannel driver circuitry and operation12 Dec 2024US 2024/0413822 A1Cirrus Logic International Semiconductor Ltd.
- Clipping prevention in switched mode drivers26 Sep 2024US 2024/0322767 A1Cirrus Logic International Semiconductor Ltd.
- Multichannel driver circuitry and operation26 Sep 2024US 2024/0322821 A1Cirrus Logic International Semiconductor Ltd.
- Clipping prevention in switched mode drivers26 Sep 2024US 2024/0323601 A1Cirrus Logic International Semiconductor Ltd.
Most cited
By later US patents
- Composite bridge amplifier with output overload and thermal protection68US 5,510,753 ABlade Technologies Inc. · 1996
- Power amplifier module with distortion compensation66US 7,068,099 B2Koninklijke Philips Electronics N. V. · 2006
- Asymmetrical digital subscriber line (ADSL) line driver circuit59US 5,825,819 AMotorola, Inc. · 1998
- Controlled impedance amplifier45US 5,585,763 ACrystal Semiconductor Corporation · 1996
- Audio-frequency power amplifier that utilizes a bridged amplified configuration44US 6,304,138 B1National Semiconductor Corporation · 2001