H03F 1/0211
With control of the supply voltage or current
Official title: {with control of the supply voltage or current}
H03F1/0211 (With control of the supply voltage or current) appears on 3,609 US grants and 3,696 published applications in this corpus.
Search patents in H03F- Granted patents
- 3,609
- Published applications
- 3,696
- Assignees
- 781
- Inventors
- 4,569
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 5 | 0 |
| 1978 | 8 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 9 | 0 |
| 1983 | 4 | 0 |
| 1984 | 15 | 0 |
| 1985 | 10 | 0 |
| 1986 | 4 | 0 |
| 1987 | 7 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 11 | 0 |
| 1993 | 6 | 0 |
| 1994 | 5 | 0 |
| 1995 | 18 | 0 |
| 1996 | 19 | 0 |
| 1997 | 6 | 0 |
| 1998 | 16 | 0 |
| 1999 | 28 | 0 |
| 2000 | 44 | 0 |
| 2001 | 27 | 12 |
| 2002 | 33 | 32 |
| 2003 | 40 | 30 |
| 2004 | 46 | 58 |
| 2005 | 30 | 71 |
| 2006 | 73 | 81 |
| 2007 | 59 | 96 |
| 2008 | 72 | 99 |
| 2009 | 63 | 86 |
| 2010 | 91 | 98 |
| 2011 | 90 | 92 |
| 2012 | 120 | 145 |
| 2013 | 138 | 151 |
| 2014 | 157 | 188 |
| 2015 | 181 | 204 |
| 2016 | 214 | 198 |
| 2017 | 233 | 189 |
| 2018 | 224 | 206 |
| 2019 | 209 | 213 |
| 2020 | 245 | 279 |
| 2021 | 195 | 210 |
| 2022 | 172 | 217 |
| 2023 | 169 | 228 |
| 2024 | 178 | 208 |
| 2025 | 177 | 175 |
| 2026 | 132 | 130 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Power amplifier6 Oct 2026US 12,756,362 B2Himax Technologies Limited
- Receiver circuit, corresponding system and method29 Sep 2026US 12,750,009 B2STMicroelectronics International N. V.
- Amplifier with temperature dependent gain and temperature compensated bandwidth29 Sep 2026US 12,750,011 B2STMicroelectronics International N. V.
- Transmit/receive (TRx) interface for Doherty operation22 Sep 2026US 12,744,495 B2QUALCOMM Incorporated
- Audio amplifier22 Sep 2026US 12,744,498 B2Harman International Industries, Incorporated
- Audio envelope tracking for controlling a tracking power supply8 Oct 2026US 2026/0312540 A1Harman Becker Automotive Systems GmbH
- High-frequency power supply device8 Oct 2026US 2026/0312541 A1Kyosan Electric Mfg. Co., Ltd.
- Multistage amplifier8 Oct 2026US 2026/0312542 A1NTT, Inc.
- Power amplifier systems with load control8 Oct 2026US 2026/0312548 A1Skyworks Solutions, Inc.
- Adaptive biasing in a power amplifier circuit1 Oct 2026US 2026/0303023 A1Qorvo US, Inc.
Most cited
By later US patents
- Method and apparatus for operating a radio-frequency power amplifier as a variable-class linear amplifier338US 6,043,707 AMotorola, Inc. · 2000
- Multi-mode amplifier system294US 7,043,213 B2Northrop Grumman Corporation · 2006
- Power- conserving drive-modulation method for envelope-elimination-and-restoration (EER) transmitters243US 6,256,482 B12001
- Buck or boost power converter211US 6,348,781 B1Motorola, Inc. · 2002
- Apparatus and methods for envelope tracking202US 8,718,188 B2Skyworks Solutions, Inc. · 2014