H03F 3/26
Push-pull amplifiers
Official title: Push-pull amplifiers; Phase-splitters therefor (duplicated single-ended push-pull arrangements or phase-splitters therefor H03F3/30)
H03F3/26 (Push-pull amplifiers) appears on 663 US grants and 500 published applications in this corpus.
Search patents in H03F- Granted patents
- 663
- Published applications
- 500
- Assignees
- 310
- Inventors
- 1,038
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 7 | 0 |
| 1978 | 8 | 0 |
| 1979 | 9 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 6 | 0 |
| 1985 | 12 | 0 |
| 1986 | 6 | 0 |
| 1987 | 12 | 0 |
| 1988 | 6 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 6 | 0 |
| 1995 | 8 | 0 |
| 1996 | 12 | 0 |
| 1997 | 12 | 0 |
| 1998 | 10 | 0 |
| 1999 | 10 | 0 |
| 2000 | 13 | 0 |
| 2001 | 15 | 2 |
| 2002 | 9 | 8 |
| 2003 | 9 | 17 |
| 2004 | 12 | 9 |
| 2005 | 12 | 17 |
| 2006 | 13 | 13 |
| 2007 | 14 | 7 |
| 2008 | 15 | 11 |
| 2009 | 4 | 4 |
| 2010 | 9 | 16 |
| 2011 | 14 | 18 |
| 2012 | 19 | 18 |
| 2013 | 18 | 14 |
| 2014 | 25 | 30 |
| 2015 | 27 | 20 |
| 2016 | 24 | 17 |
| 2017 | 27 | 31 |
| 2018 | 30 | 33 |
| 2019 | 43 | 22 |
| 2020 | 17 | 22 |
| 2021 | 24 | 29 |
| 2022 | 21 | 32 |
| 2023 | 18 | 42 |
| 2024 | 26 | 29 |
| 2025 | 29 | 23 |
| 2026 | 19 | 16 |
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)
- Apparatus and method for generating a control signal for a sound generator or for generating an extended multi-channel audio signal by using a similarity analysis4 Aug 2026US 12,701,384 B2Kaetel Systems GmbH
- Receiver circuit and optical receiver circuit28 Jul 2026US 12,695,516 B2Sumitomo Electric Industries, Ltd.
- Crystal oscillators including a two stage amplifier7 Jul 2026US 12,676,579 B1Infineon Technologies Americas Corp.
- Transformer power combiner apparatus and control method16 Jun 2026US 12,658,863 B2Shenzhen MUYE Microelectronic Co., Ltd.
- Gate drive circuit24 Sep 2026US 2026/0291489 A1Sansha Electric Manufacturing Company, Limited
- Method and devices to increase power added efficiency in power amplifiers20 Aug 2026US 2026/0246427 A1pSemi Corporation
- Power amplifier system with reduced gain variation for envelope tracking applications16 Jul 2026US 2026/0205072 A1Skyworks Solutions, Inc.
- Transformation module for an rf amplifier arrangement, rf amplifier arrangement comprising such a transformation module, and arrangement for accelerating particles comprising at least one such rf amplifier arrangement2 Jul 2026US 2026/0189198 A1Trumpf HüTtinger GmbH + Co. KG
- Integrate-and-hold circuit18 Jun 2026US 2026/0171977 A1
Most cited
By later US patents
- High power battery powered RF amplifier topology200US 10,159,524 B2Ethicon, Inc. · 2018
- Single-ended to differential converter93US 5,945,878 AMotorola, Inc. · 1999
- Linear RF power amplifier77US 5,726,603 AENI Technologies, Inc. · 1998
- Audio frequency amplifier74US 8,026,765 B22011
- Solid-state RF power amplifier for radio transmitters74US 8,031,003 B22011