H03F 3/213
In integrated circuits
Official title: in integrated circuits
H03F3/213 (In integrated circuits) appears on 797 US grants and 928 published applications in this corpus.
Search patents in H03F- Granted patents
- 797
- Published applications
- 928
- Assignees
- 231
- Inventors
- 1,482
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 2 |
| 2004 | 0 | 0 |
| 2005 | 1 | 2 |
| 2006 | 2 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 2 | 4 |
| 2010 | 2 | 3 |
| 2011 | 3 | 3 |
| 2012 | 2 | 4 |
| 2013 | 1 | 7 |
| 2014 | 7 | 31 |
| 2015 | 22 | 37 |
| 2016 | 37 | 42 |
| 2017 | 53 | 73 |
| 2018 | 98 | 107 |
| 2019 | 97 | 105 |
| 2020 | 94 | 101 |
| 2021 | 87 | 85 |
| 2022 | 69 | 68 |
| 2023 | 52 | 72 |
| 2024 | 53 | 70 |
| 2025 | 59 | 70 |
| 2026 | 38 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Power amplifier6 Oct 2026US 12,756,362 B2Himax Technologies Limited
- Source amplifier and source driver including source amplifier22 Sep 2026US 12,743,986 B2Korea Advanced Institute of Science and Technology
- High voltage amplifier15 Sep 2026US 12,738,896 B2Hitachi High-Tech Corporation
- Radio frequency circuit and communication device15 Sep 2026US 12,738,902 B2Murata Manufacturing Co., Ltd.
- Digital signal compensation25 Aug 2026US 12,719,410 B2Telefonaktiebolaget LM Ericsson (publ)
- Power amplifier systems with load control8 Oct 2026US 2026/0312548 A1Skyworks Solutions, Inc.
- Doherty amplifier circuit1 Oct 2026US 2026/0303027 A1Murata Manufacturing Co., Ltd.
- Multichannel drivers1 Oct 2026US 2026/0303078 A1Cirrus Logic International Semiconductor Ltd.
- Methods and Apparatus for Linearization of a Power Amplifier Output1 Oct 2026US 2026/0303134 A1
- Two-stage power amplifier17 Sep 2026US 2026/0280497 A1Renesas Electronics America Inc.
Most cited
By later US patents
- Multi-mode envelope tracking amplifier circuit71US 10,158,330 B1Qorvo US, Inc. · 2018
- Power amplifier modules including related systems, devices, and methods66US 9,041,472 B2Skyworks Solutions, Inc. · 2015
- Semiconductor device46US 6,330,165 B1Hitachi, Ltd. · 2001
- Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments41US 7,911,272 B2ParkerVision, Inc. · 2011
- Constant Vds1 bias control for stacked transistor configuration38US 11,128,261 B2pSemi Corporation · 2021