H03F 3/24
Of transmitter output stages
Official title: of transmitter output stages
H03F3/24 (Of transmitter output stages) appears on 6,865 US grants and 7,979 published applications in this corpus.
Search patents in H03F- Granted patents
- 6,865
- Published applications
- 7,979
- Assignees
- 1,135
- Inventors
- 8,571
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 7 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 7 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 9 | 0 |
| 1997 | 4 | 0 |
| 1998 | 11 | 0 |
| 1999 | 15 | 0 |
| 2000 | 17 | 0 |
| 2001 | 18 | 9 |
| 2002 | 15 | 28 |
| 2003 | 23 | 34 |
| 2004 | 24 | 48 |
| 2005 | 31 | 82 |
| 2006 | 68 | 119 |
| 2007 | 71 | 167 |
| 2008 | 106 | 183 |
| 2009 | 119 | 162 |
| 2010 | 144 | 202 |
| 2011 | 215 | 238 |
| 2012 | 240 | 319 |
| 2013 | 320 | 299 |
| 2014 | 326 | 398 |
| 2015 | 423 | 465 |
| 2016 | 449 | 434 |
| 2017 | 516 | 441 |
| 2018 | 442 | 413 |
| 2019 | 455 | 467 |
| 2020 | 458 | 553 |
| 2021 | 406 | 512 |
| 2022 | 414 | 455 |
| 2023 | 318 | 521 |
| 2024 | 356 | 566 |
| 2025 | 432 | 493 |
| 2026 | 336 | 371 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Doherty amplifier system6 Oct 2026US 12,756,363 B2Qorvo US, Inc.
- Method and apparatus for controlling second harmonic-of power amplifier in wide frequency range6 Oct 2026US 12,756,365 B2Avago Technologies International Sales Pte. Limited
- Matching network for a power amplifier6 Oct 2026US 12,756,366 B2QUALCOMM Incorporated
- Power amplifier circuit and power amplification method6 Oct 2026US 12,756,367 B2Murata Manufacturing Co., Ltd.
- Power amplifier and radio frequency module6 Oct 2026US 12,756,368 B2Mitsubishi Electric Corporation
- Doherty power amplifiers with controllable capacitor for tuning harmonic termination and inverter8 Oct 2026US 2026/0312543 A1Skyworks Solutions, Inc.
- Power amplifier systems with load control8 Oct 2026US 2026/0312548 A1Skyworks Solutions, Inc.
- Stability circuits and methods for power amplifiers8 Oct 2026US 2026/0312549 A1Skyworks Solutions, Inc.
- Power amplifier phase compensation circuits and methods8 Oct 2026US 2026/0312550 A1Skyworks Solutions, Inc.
- Rfic with substrate partition8 Oct 2026US 2026/0312551 A1Taiwan Semiconductor Manufacturing Company.Ltd
Most cited
By later US patents
- Waste energy control and management in power amplifier368US 5,568,088 AEricsson GE Mobile Communications Inc. · 1996
- Active cancellation of transmitter leakage in a wireless transceiver363US 8,175,535 B2Telefonaktiebolaget LM Ericsson (publ) · 2012
- Distortion compensation apparatus and distortion compensation method358US 9,397,619 B2Fujitsu Limited · 2016
- Method and apparatus for operating a radio-frequency power amplifier as a variable-class linear amplifier338US 6,043,707 AMotorola, Inc. · 2000
- Efficient parallel-stage power amplifier252US 5,872,481 AQUALCOMM Incorporated · 1999