H03F 1/0255
By using a signal derived from the output signal
Official title: {by using a signal derived from the output signal}
H03F1/0255 (By using a signal derived from the output signal) appears on 73 US grants and 92 published applications in this corpus.
Search patents in H03F- Granted patents
- 73
- Published applications
- 92
- Assignees
- 65
- Inventors
- 182
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 2 | 2 |
| 2008 | 0 | 2 |
| 2009 | 0 | 2 |
| 2010 | 2 | 5 |
| 2011 | 2 | 2 |
| 2012 | 5 | 8 |
| 2013 | 6 | 7 |
| 2014 | 7 | 4 |
| 2015 | 5 | 3 |
| 2016 | 3 | 5 |
| 2017 | 3 | 3 |
| 2018 | 4 | 9 |
| 2019 | 7 | 3 |
| 2020 | 5 | 5 |
| 2021 | 4 | 0 |
| 2022 | 1 | 5 |
| 2023 | 0 | 5 |
| 2024 | 2 | 5 |
| 2025 | 8 | 6 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Envelope tracking with low frequency loss correction123US 9,831,834 B2Skyworks Solutions, Inc. · 2017
- Power amplifier with multiple power supplies84US 6,825,726 B2Indigo Manufacturing Inc. · 2004
- Envelope tracking power management circuit83US 10,326,408 B2Qorvo US, Inc. · 2019
- Apparatus and method for expanding operation region of power amplifier56US 9,065,394 B2Samsung Electronics Co., Ltd. · 2015
- Controlling a power amplifier based on transmitter output emissions55US 8,879,665 B2Broadcom Corporation · 2014