H03F 1/306
In junction-fet amplifiers
Official title: {in junction-FET amplifiers (H03F1/303, H03F1/305, H03F1/309 take precedence)}
H03F1/306 (In junction-fet amplifiers) appears on 104 US grants and 45 published applications in this corpus.
Search patents in H03F- Granted patents
- 104
- Published applications
- 45
- Assignees
- 81
- Inventors
- 197
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 6 | 1 |
| 2002 | 5 | 5 |
| 2003 | 3 | 4 |
| 2004 | 5 | 4 |
| 2005 | 3 | 3 |
| 2006 | 4 | 2 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 3 |
| 2011 | 1 | 2 |
| 2012 | 2 | 1 |
| 2013 | 1 | 2 |
| 2014 | 3 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 2 |
| 2018 | 1 | 4 |
| 2019 | 2 | 2 |
| 2020 | 0 | 3 |
| 2021 | 3 | 2 |
| 2022 | 2 | 0 |
| 2023 | 1 | 2 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Circuit for removing offset output voltage, and electronic device comprising same13 Jan 2026US 12,525,938 B2Chung Ang University Industry Academic Cooperation Foundation
- Signal processing device and image display apparatus including the same11 Feb 2025US 12,224,719 B2LG Electronics Inc.
- Methods and apparatus for voltage buffering22 Oct 2024US 12,126,309 B2Texas Instruments Incorporated
- Thermal temperature sensors for power amplifiers17 Oct 2023US 11,791,775 B2Analog Devices, Inc.
- Operational amplifier26 Apr 2022US 11,316,480 B2RichWave Technology Corp.
- High precision jfet amplifier19 Feb 2026US 2026/0051865 A1Weed Instrument Company, Inc.
- Compound semiconductor amplifier and circuit module12 Feb 2026US 2026/0045920 A1Fujitsu Limited
- Circuit for removing offset output voltage, and electronic device comprising same1 Feb 2024US 2024/0039496 A1Chung Ang University Industry Academic Cooperation Foundation
- Signal processing device and image display apparatus including the same7 Sep 2023US 2023/0283246 A1LG Electronics Inc.
- Thermal temperature sensors for power amplifiers5 Jan 2023US 2023/0006610 A1Analog Devices, Inc.
Most cited
By later US patents
- Temperature and process compensating circuit and controller for an RF power amplifier194US 6,194,968 B1Tyco Electronics Logistics AG · 2001
- HEMT-HBT doherty microwave amplifier92US 6,469,581 B1TRW Inc. · 2002
- Voltage bias and temperature compensation circuit for radio frequency power amplifier75US 5,724,004 AMotorola, Inc. · 1998
- System and method for auto-bias of an amplifier52US 6,351,189 B1Nokia Networks Oy · 2002
- Power amplifier bias control circuit and method43US 5,442,322 AAlps Electric Co., Ltd. · 1995