H03F 3/191
Tuned amplifiers
Official title: Tuned amplifiers (H03F3/193, H03F3/195 take precedence)
H03F3/191 (Tuned amplifiers) appears on 731 US grants and 667 published applications in this corpus.
Search patents in H03F- Granted patents
- 731
- Published applications
- 667
- Assignees
- 290
- Inventors
- 1,125
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 8 | 0 |
| 2000 | 7 | 0 |
| 2001 | 8 | 3 |
| 2002 | 14 | 34 |
| 2003 | 13 | 17 |
| 2004 | 28 | 25 |
| 2005 | 29 | 34 |
| 2006 | 22 | 34 |
| 2007 | 34 | 45 |
| 2008 | 32 | 30 |
| 2009 | 33 | 22 |
| 2010 | 26 | 18 |
| 2011 | 12 | 16 |
| 2012 | 19 | 22 |
| 2013 | 23 | 28 |
| 2014 | 27 | 35 |
| 2015 | 37 | 31 |
| 2016 | 34 | 58 |
| 2017 | 52 | 38 |
| 2018 | 44 | 31 |
| 2019 | 43 | 43 |
| 2020 | 36 | 41 |
| 2021 | 32 | 19 |
| 2022 | 19 | 16 |
| 2023 | 14 | 11 |
| 2024 | 11 | 5 |
| 2025 | 15 | 10 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gain equalizer and method for controlling tunable gain of gain equalizer17 Mar 2026US 12,580,541 B2Mediatek Inc.
- Radio-frequency amplifier with load response estimation4 Nov 2025US 12,463,596 B2
- Amplification circuit14 Oct 2025US 12,445,095 B2Murata Manufacturing Co., Ltd.
- Devices and methods for operating a charge pump23 Sep 2025US 12,424,935 B2Skyworks Solutions, Inc.
- Systems and methods related to power amplification and power supply control9 Sep 2025US 12,413,188 B2Skyworks Solutions, Inc.
- Differential power amplifier1 Oct 2026US 2026/0303031 A1Murata Manufacturing Co., Ltd.
- Differential hybrid supply generator and supply modulator with three or four levels25 Dec 2025US 2025/0392215 A1Murata Manufacturing Co., Ltd.
- Differential hybrid supply generator and supply modulator with multiple outputs25 Dec 2025US 2025/0392263 A1Murata Manufacturing Co., Ltd.
- Reconfigurable power amplifiers with controllable output capacitance25 Dec 2025US 2025/0392272 A1Skyworks Solutions, Inc.
- Power amplifier25 Dec 2025US 2025/0392275 A1Sumitomo Electric Industries, Ltd.
Most cited
By later US patents
- System and method for dual-band antenna matching340US 7,180,467 B2Kyocera Wireless Corp. · 2007
- Tunable horn antenna238US 6,867,744 B2Kyocera Wireless Corp. · 2005
- Electronically tuned power amplifier205US 7,202,734 B12007
- Tunable matching circuit154US 6,825,818 B2Kyocera Wireless Corp. · 2004
- Tunable antenna matching circuit139US 6,765,540 B2Kyocera Wireless Corp. · 2004