H04B 2001/0408
With power amplifiers
Official title: {with power amplifiers}
H04B2001/0408 (With power amplifiers) appears on 3,429 US grants and 3,659 published applications in this corpus.
Search patents in H04B- Granted patents
- 3,429
- Published applications
- 3,659
- Assignees
- 804
- Inventors
- 5,418
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 6 | 0 |
| 1992 | 8 | 0 |
| 1993 | 10 | 0 |
| 1994 | 8 | 0 |
| 1995 | 8 | 0 |
| 1996 | 9 | 0 |
| 1997 | 7 | 0 |
| 1998 | 14 | 0 |
| 1999 | 15 | 0 |
| 2000 | 12 | 0 |
| 2001 | 24 | 10 |
| 2002 | 18 | 27 |
| 2003 | 20 | 43 |
| 2004 | 22 | 50 |
| 2005 | 25 | 66 |
| 2006 | 61 | 78 |
| 2007 | 53 | 90 |
| 2008 | 58 | 72 |
| 2009 | 55 | 73 |
| 2010 | 58 | 90 |
| 2011 | 75 | 56 |
| 2012 | 107 | 99 |
| 2013 | 130 | 101 |
| 2014 | 133 | 168 |
| 2015 | 185 | 232 |
| 2016 | 221 | 252 |
| 2017 | 285 | 224 |
| 2018 | 227 | 185 |
| 2019 | 208 | 196 |
| 2020 | 232 | 238 |
| 2021 | 198 | 267 |
| 2022 | 230 | 228 |
| 2023 | 172 | 235 |
| 2024 | 182 | 222 |
| 2025 | 196 | 196 |
| 2026 | 139 | 161 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04B 2001/0425With linearisation using predistortionIndexing code881
- H04B 2001/0416Having gain or transmission power controlIndexing code835
- H04B 2001/045With means for improving efficiencyIndexing code544
- H04B 2001/0433With linearisation using feedbackIndexing code376
- H04B 2001/0441With linearisation using feed-forwardIndexing code115
Recent patents
- Matching network for a power amplifier6 Oct 2026US 12,756,366 B2QUALCOMM Incorporated
- Beamforming communication system with crossbar switch6 Oct 2026US 12,756,436 B2Skyworks Solutions, Inc.
- Radio wave control system, control apparatus, radio wave control method, and non-transitory computer readable medium29 Sep 2026US 12,749,809 B2NEC Corporation
- Apparatus and method for digital predistortion initialization of high-power amplifiers29 Sep 2026US 12,750,013 B2L3Harris Technologies, Inc.
- Power amplifier systems with switchable transistor array and switchable biasing circuit29 Sep 2026US 12,750,020 B2Skyworks 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.
- Integrated radio frequency switching circuit with a single-pole-multi-throw switch8 Oct 2026US 2026/0312605 A1Synaptics Incorporated
- Envelope controlled radio frequency switches8 Oct 2026US 2026/0312606 A1Skyworks Solutions, Inc.
- Radio frequency band switching in a power management integrated circuit8 Oct 2026US 2026/0312854 A1Qorvo US, Inc.
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
- Method and apparatus for operating a radio-frequency power amplifier as a variable-class linear amplifier338US 6,043,707 AMotorola, Inc. · 2000
- Linear transmitter using predistortion283US 5,732,333 AGlenayre Electronics, Inc. · 1998
- Efficient parallel-stage power amplifier252US 5,872,481 AQUALCOMM Incorporated · 1999