H03F 1/307
In push-pull amplifiers
Official title: {in push-pull amplifiers}
H03F1/307 (In push-pull amplifiers) appears on 228 US grants and 135 published applications in this corpus.
Search patents in H03F- Granted patents
- 228
- Published applications
- 135
- Assignees
- 148
- Inventors
- 398
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 6 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 7 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 2 |
| 2002 | 6 | 5 |
| 2003 | 11 | 9 |
| 2004 | 6 | 4 |
| 2005 | 4 | 5 |
| 2006 | 2 | 3 |
| 2007 | 5 | 0 |
| 2008 | 0 | 3 |
| 2009 | 4 | 10 |
| 2010 | 3 | 5 |
| 2011 | 8 | 4 |
| 2012 | 5 | 6 |
| 2013 | 9 | 3 |
| 2014 | 4 | 2 |
| 2015 | 3 | 8 |
| 2016 | 13 | 6 |
| 2017 | 3 | 8 |
| 2018 | 11 | 6 |
| 2019 | 5 | 4 |
| 2020 | 6 | 7 |
| 2021 | 8 | 7 |
| 2022 | 4 | 6 |
| 2023 | 5 | 5 |
| 2024 | 2 | 7 |
| 2025 | 6 | 5 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Amplifier arrangement with enhanced harmonic rejection4 Aug 2026US 12,700,839 B2Telefonaktiebolaget LM Ericsson (publ)
- Clipping prevention in switched mode drivers26 May 2026US 12,640,694 B2Cirrus Logic, Inc.
- High-speed, high-power operational amplifier and linear amplitude modulator9 Dec 2025US 12,494,752 B2Eridan Communications d.o.o.
- Push-pull radio frequency power amplifier and method for controlling circuit28 Oct 2025US 12,456,955 B2Smarter Microelectronics (Guang Zhou) Co., Ltd.
- Push-pull power amplifier30 Sep 2025US 12,431,848 B2MediaTek Singapore Pte. Ltd.
- Systems and methods for analog front-end (afe) amplification with a complementary bias-stage circuit30 Jul 2026US 2026/0221951 A1Samsung Electronics Co., Ltd.
- Bias voltage generators2 Jul 2026US 2026/0189201 A1Mediatek Inc.
- Class ab quiescent current optimization4 Jun 2026US 2026/0155786 A1STMicroelectronics International N. V.
- Push-pull source follower circuit using biasing technique to program bias current and output mean voltage independently8 Jan 2026US 2026/0012138 A1Mediatek Inc.
- Push-pull power amplifier1 Jan 2026US 2026/0005660 A1MediaTek Singapore Pte. Ltd.
Most cited
By later US patents
- Amplifier142US 6,384,684 B1U. S. Philips Corporation · 2002
- High speed buffer circuit particularly suited for use in sample and hold circuits108US 4,612,464 ASony Corporation · 1986
- Operational amplifier arrangement including a quiescent current control circuit56US 6,867,647 B2Alcatel · 2005
- Single-ended, ultra low voltage class AB power amplifier architecture having a common-mode feedback quiescent current control circuit36US 6,556,081 B2Texas Instruments Incorporated · 2003
- Amplifier circuit with a stabilized bias in its output stage31US 5,467,058 AYamaha Corporation · 1995