H03F 1/3217
In single ended push-pull amplifiers
Official title: {in single ended push-pull amplifiers}
H03F1/3217 (In single ended push-pull amplifiers) appears on 188 US grants and 55 published applications in this corpus.
Search patents in H03F- Granted patents
- 188
- Published applications
- 55
- Assignees
- 100
- Inventors
- 253
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 11 | 0 |
| 1983 | 6 | 0 |
| 1984 | 7 | 0 |
| 1985 | 7 | 0 |
| 1986 | 6 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 8 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 7 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 7 | 0 |
| 2000 | 8 | 0 |
| 2001 | 6 | 3 |
| 2002 | 4 | 1 |
| 2003 | 4 | 4 |
| 2004 | 6 | 1 |
| 2005 | 1 | 2 |
| 2006 | 1 | 0 |
| 2007 | 1 | 2 |
| 2008 | 2 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 1 | 2 |
| 2012 | 1 | 1 |
| 2013 | 4 | 0 |
| 2014 | 0 | 1 |
| 2015 | 2 | 2 |
| 2016 | 5 | 2 |
| 2017 | 1 | 8 |
| 2018 | 7 | 2 |
| 2019 | 3 | 5 |
| 2020 | 3 | 0 |
| 2021 | 1 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 3 |
| 2024 | 2 | 4 |
| 2025 | 2 | 4 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fully integrated CMOS multiple MOSFET-stacked double push-pull RF power amplifier29 Sep 2026US 12,750,012 B2Shanghai WUQI Microelectronics Co., Ltd.
- Signal amplifying circuit and signal processing system and analog-to-digital converting system comprising the same14 Apr 2026US 12,603,618 B2Realtek Semiconductor Corp.
- Power amplifier31 Mar 2026US 12,592,672 B2Yamaha Corporation
- Input buffer and a method for reducing a signal amplitude dependency of said input buffer3 Feb 2026US 12,542,562 B2Imec Vzw
- High-speed, high-power operational amplifier and linear amplitude modulator9 Dec 2025US 12,494,752 B2Eridan Communications d.o.o.
- Differential-to-single-ended active converter13 Aug 2026US 2026/0238207 A1QUALCOMM Incorporated
- Modulator circuits15 Jan 2026US 2026/0019049 A1Cirrus Logic International Semiconductor Ltd.
- Programmable amplifier topology25 Sep 2025US 2025/0300683 A1QUALCOMM Incorporated
- Unit amplification circuit, amplifier and receiving circuit6 Mar 2025US 2025/0080069 A1Samsung Electronics Co., Ltd.
- High efficiency ultra-wideband amplifier27 Feb 2025US 2025/0070719 A1
Most cited
By later US patents
- Class AB amplifier and a distortion corrector therefor76US 4,682,119 AThomson-CSF · 1987
- Bias system and method68US 7,064,607 B2Texas Instruments Incorporated · 2006
- Power amplifier53US 4,430,625 ANippon Gakki Seizo Kabushiki Kaisha · 1984
- Current amplifiers51US 5,412,309 ANational Semiconductor Corporation · 1995
- Operational amplification circuit capable of driving a high load31US 5,907,259 AOki Electric Industry Co., Ltd. · 1999