H03H 11/28
Impedance matching networks
H03H11/28 (Impedance matching networks) appears on 592 US grants and 525 published applications in this corpus.
Search patents in H03H- Granted patents
- 592
- Published applications
- 525
- Assignees
- 295
- Inventors
- 1,006
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 6 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 5 | 0 |
| 2000 | 10 | 0 |
| 2001 | 8 | 3 |
| 2002 | 6 | 12 |
| 2003 | 12 | 9 |
| 2004 | 9 | 8 |
| 2005 | 4 | 4 |
| 2006 | 9 | 8 |
| 2007 | 3 | 15 |
| 2008 | 10 | 15 |
| 2009 | 12 | 10 |
| 2010 | 12 | 15 |
| 2011 | 13 | 29 |
| 2012 | 12 | 15 |
| 2013 | 22 | 16 |
| 2014 | 16 | 19 |
| 2015 | 22 | 29 |
| 2016 | 24 | 25 |
| 2017 | 41 | 46 |
| 2018 | 37 | 43 |
| 2019 | 51 | 29 |
| 2020 | 44 | 35 |
| 2021 | 34 | 24 |
| 2022 | 22 | 21 |
| 2023 | 22 | 30 |
| 2024 | 26 | 32 |
| 2025 | 23 | 12 |
| 2026 | 18 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Phase-shifting circuits and radio frequency microwave systems29 Sep 2026US 12,750,038 B2Etra Semiconductor (Suzhou) Co., Ltd.
- RF impedance matching network with clamping circuit15 Sep 2026US 12,738,917 B2ASM America, Inc.
- Digital variable reactance element, phase shifter, and impedance matching circuit1 Sep 2026US 12,726,179 B2Murata Manufacturing Co., Ltd.
- Device module, manufacturing method therefor, and inductor-capacitor array25 Aug 2026US 12,721,156 B2Sg Micro Corp
- Radio frequency module and communication device11 Aug 2026US 12,706,618 B2Murata Manufacturing Co., Ltd.
- Device for Matching RF Power into a Rapidly Varying Load8 Oct 2026US 2026/0312569 A1Jefferson Science Associates, LLC
- Input matching circuit and related apparatus1 Oct 2026US 2026/0303065 A1Huawei Technologies Co., Ltd.
- Transmitter circuit1 Oct 2026US 2026/0303090 A1ITE Tech. Inc.
- Electrical variable capacitor based impedance matching circuit and system for manufacturing semiconductor using the same23 Jul 2026US 2026/0213130 A1Industrial Cooperation Foundation Jeonbuk National University
- Semiconductor device with a plurality of replication units and with a plurality of resistors and method for manufacturing23 Jul 2026US 2026/0215258 A1Infineon Technologies Austria AG
Most cited
By later US patents
- Method and apparatus for high efficiency rectification for various loads396US 7,868,482 B2Powercast Corporation · 2011
- Method and apparatus for high efficiency rectification for various loads297US 9,000,616 B2Powercast Corporation · 2015
- Adaptive antenna matching204US 5,778,308 ANokia Mobile Phones Ltd. · 1998
- Impedance matching device provided with reactance-impedance table185US 6,946,847 B2DAIHEN Corporation · 2005
- Impedance matching circuit for power amplifier175US 5,969,582 AEricsson Inc. · 1999