H03F 1/0261
With control of the polarisation voltage or current
Official title: {with control of the polarisation voltage or current, e.g. gliding Class A}
H03F1/0261 (With control of the polarisation voltage or current) appears on 1,901 US grants and 1,861 published applications in this corpus.
Search patents in H03F- Granted patents
- 1,901
- Published applications
- 1,861
- Assignees
- 529
- Inventors
- 2,749
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 1 | 0 |
| 1984 | 7 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 10 | 0 |
| 1991 | 15 | 0 |
| 1992 | 9 | 0 |
| 1993 | 9 | 0 |
| 1994 | 12 | 0 |
| 1995 | 8 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 11 | 0 |
| 1999 | 7 | 0 |
| 2000 | 12 | 0 |
| 2001 | 21 | 7 |
| 2002 | 21 | 20 |
| 2003 | 29 | 41 |
| 2004 | 44 | 59 |
| 2005 | 38 | 42 |
| 2006 | 49 | 51 |
| 2007 | 44 | 63 |
| 2008 | 51 | 59 |
| 2009 | 60 | 57 |
| 2010 | 66 | 68 |
| 2011 | 75 | 82 |
| 2012 | 73 | 97 |
| 2013 | 83 | 82 |
| 2014 | 92 | 79 |
| 2015 | 96 | 110 |
| 2016 | 108 | 102 |
| 2017 | 128 | 99 |
| 2018 | 105 | 112 |
| 2019 | 114 | 98 |
| 2020 | 92 | 109 |
| 2021 | 82 | 85 |
| 2022 | 69 | 72 |
| 2023 | 58 | 96 |
| 2024 | 62 | 69 |
| 2025 | 69 | 62 |
| 2026 | 35 | 40 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Scalable periphery tunable matching power amplifier25 Aug 2026US 12,719,415 B2pSemi Corporation
- Amplifier with transistor voltage control25 Aug 2026US 12,719,417 B2STMicroelectronics International N. V.
- Transmission circuit18 Aug 2026US 12,712,502 B2Murata Manufacturing Co., Ltd.
- Transmission setting selection18 Aug 2026US 12,712,576 B2QUALCOMM Incorporated
- Constant VDS1 bias control for stacked transistor configuration11 Aug 2026US 12,706,571 B2pSemi Corporation
- Power amplifier13 Aug 2026US 2026/0238166 A1Fujikura Ltd.
- Dynamically biased amplifier6 Aug 2026US 2026/0230041 A1QUALCOMM Incorporated
- Power Saving in HFC Networks by Selectively Reducing Spectrum Utilization and Bias of a Power Amplifier30 Jul 2026US 2026/0221941 A1Harmonic, Inc.
- Charging and discharging circuits for assisting charge pumps16 Jul 2026US 2026/0205011 A1Skyworks Solutions, Inc.
- Over temperature protection of ldo controlling the rf power amplifier collector voltage16 Jul 2026US 2026/0205064 A1Skyworks Solutions, Inc.
Most cited
By later US patents
- Electronic device having sound output module1,021US 7,046,082 B2Rohm Co., Ltd. · 2006
- Method and apparatus for operating a radio-frequency power amplifier as a variable-class linear amplifier338US 6,043,707 AMotorola, Inc. · 2000
- Subthreshold CMOS amplifier with offset adaptation214US 4,935,702 ASynaptics Incorporated · 1990
- Current modulator with dynamic amplifier impedance compensation183US 6,566,944 B1Ericsson Inc. · 2003
- Bias circuit for a power amplifier179US 5,757,229 AMotorola, Inc. · 1998