H03H 7/38
Impedance-matching networks
H03H7/38 (Impedance-matching networks) appears on 2,753 US grants and 2,850 published applications in this corpus.
Search patents in H03H- Granted patents
- 2,753
- Published applications
- 2,850
- Assignees
- 905
- Inventors
- 4,526
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 9 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 6 | 0 |
| 1985 | 7 | 0 |
| 1986 | 2 | 0 |
| 1987 | 9 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 10 | 0 |
| 1991 | 12 | 0 |
| 1992 | 6 | 0 |
| 1993 | 8 | 0 |
| 1994 | 6 | 0 |
| 1995 | 15 | 0 |
| 1996 | 16 | 0 |
| 1997 | 9 | 0 |
| 1998 | 8 | 0 |
| 1999 | 13 | 0 |
| 2000 | 15 | 0 |
| 2001 | 21 | 4 |
| 2002 | 23 | 32 |
| 2003 | 33 | 35 |
| 2004 | 25 | 33 |
| 2005 | 27 | 38 |
| 2006 | 35 | 38 |
| 2007 | 28 | 56 |
| 2008 | 33 | 80 |
| 2009 | 52 | 82 |
| 2010 | 62 | 100 |
| 2011 | 54 | 98 |
| 2012 | 76 | 162 |
| 2013 | 110 | 124 |
| 2014 | 118 | 157 |
| 2015 | 159 | 171 |
| 2016 | 164 | 160 |
| 2017 | 192 | 190 |
| 2018 | 189 | 184 |
| 2019 | 212 | 201 |
| 2020 | 222 | 203 |
| 2021 | 153 | 133 |
| 2022 | 135 | 123 |
| 2023 | 99 | 136 |
| 2024 | 120 | 131 |
| 2025 | 129 | 100 |
| 2026 | 94 | 79 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Filter and filter module6 Oct 2026US 12,756,374 B2Murata Manufacturing Co., Ltd.
- Semiconductor processing equipment and impedance-matching method29 Sep 2026US 12,749,654 B2Beijing Naura Microelectronics Equipment Co., Ltd.
- Analog front end of receiver for high baud-rate communications29 Sep 2026US 12,750,015 B1Marvell Asia Pte Ltd
- Apparatus and method for supplying power29 Sep 2026US 12,750,028 B2ASE Co., Ltd.
- De-icing systems22 Sep 2026US 12,741,745 B2De-Ice Technologies, Inc.
- Rf impedance matching network with series-connected diode switches1 Oct 2026US 2026/0302137 A1ASM America, Inc.
- Impedance matcher1 Oct 2026US 2026/0303052 A1DAIHEN Corporation
- High frequency power supply system1 Oct 2026US 2026/0303053 A1DAIHEN Corporation
- Capacitive coupling for optical or laser diodes24 Sep 2026US 2026/0291172 A1Satius Holding, Inc.
- Impedance adjustment circuit24 Sep 2026US 2026/0291461 A1Industrial Cooperation Foundation Jeonbuk National University
Most cited
By later US patents
- Wireless energy transfer for medical applications551US 8,937,408 B2WiTricity Corporation · 2015
- Wireless energy transfer using planar capacitively loaded conducting loop resonators449US 8,035,255 B2WiTricity Corporation · 2011
- Wireless energy transfer converters438US 8,497,601 B2WiTricity Corporation · 2013
- Wireless energy transfer using repeater resonators365US 8,729,737 B2WiTricity Corporation · 2014
- System and method for dual-band antenna matching340US 7,180,467 B2Kyocera Wireless Corp. · 2007