H03H 11/30
Automatic matching of source impedance to load impedance
H03H11/30 (Automatic matching of source impedance to load impedance) appears on 208 US grants and 180 published applications in this corpus.
Search patents in H03H- Granted patents
- 208
- Published applications
- 180
- Assignees
- 143
- Inventors
- 342
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 3 |
| 2002 | 1 | 4 |
| 2003 | 6 | 5 |
| 2004 | 4 | 5 |
| 2005 | 2 | 3 |
| 2006 | 7 | 5 |
| 2007 | 1 | 8 |
| 2008 | 6 | 7 |
| 2009 | 6 | 4 |
| 2010 | 7 | 9 |
| 2011 | 7 | 23 |
| 2012 | 9 | 11 |
| 2013 | 17 | 12 |
| 2014 | 11 | 7 |
| 2015 | 13 | 13 |
| 2016 | 5 | 7 |
| 2017 | 12 | 13 |
| 2018 | 15 | 8 |
| 2019 | 12 | 9 |
| 2020 | 11 | 9 |
| 2021 | 3 | 3 |
| 2022 | 5 | 2 |
| 2023 | 3 | 3 |
| 2024 | 2 | 4 |
| 2025 | 3 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- RF impedance matching network with clamping circuit15 Sep 2026US 12,738,917 B2ASM America, Inc.
- Switchable inductor for boost or matching optimization18 Nov 2025US 12,475,926 B1Avago Technologies International Sales Pte. Limited
- Impedance matching network and method14 Oct 2025US 12,444,573 B2ASM America, Inc.
- Communications system including selectable impedance using an alternating pulse width modulation scheme and related methods1 Apr 2025US 12,267,056 B2L3Harris Global Communications, Inc.
- Autonomously matching signal frequency to load resonant frequency using system power13 Aug 2024US 12,063,022 B1Trudell Medical International
- Device for Matching RF Power into a Rapidly Varying Load8 Oct 2026US 2026/0312569 A1Jefferson Science Associates, LLC
- Circuit capable of automatically adjusting impedance thereof12 Mar 2026US 2026/0074678 A1University of Seoul Industry Cooperation Foundation
- Communications system including selectable impedance using an alternating pulse width modulation scheme and related methods19 Jun 2025US 2025/0202450 A1L3Harris Global Communications, Inc.
- Voltage and current generator28 Nov 2024US 2024/0396529 A1Yokogawa Electric Corporation
- Method and apparatus for dynamic rf power splitting through manipulation of dc output properties31 Oct 2024US 2024/0364314 A1Powercast Corporation
Most cited
By later US patents
- 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
- On-chip termination144US 6,157,206 AIntel Corporation · 2000
- Adaptive impedance matching apparatus, system and method144US 7,714,676 B2Paratek Microwave, Inc. · 2010