H03H 11/02
Multiple-port networks
H03H11/02 (Multiple-port networks) appears on 4,150 US grants and 3,095 published applications in this corpus.
Search patents in H03H- Granted patents
- 4,150
- Published applications
- 3,095
- Assignees
- 1,250
- Inventors
- 6,196
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 32 | 0 |
| 1977 | 50 | 0 |
| 1978 | 24 | 0 |
| 1979 | 27 | 0 |
| 1980 | 23 | 0 |
| 1981 | 35 | 0 |
| 1982 | 32 | 0 |
| 1983 | 28 | 0 |
| 1984 | 31 | 0 |
| 1985 | 31 | 0 |
| 1986 | 33 | 0 |
| 1987 | 41 | 0 |
| 1988 | 38 | 0 |
| 1989 | 54 | 0 |
| 1990 | 36 | 0 |
| 1991 | 42 | 0 |
| 1992 | 45 | 0 |
| 1993 | 43 | 0 |
| 1994 | 51 | 0 |
| 1995 | 63 | 0 |
| 1996 | 45 | 0 |
| 1997 | 59 | 0 |
| 1998 | 68 | 0 |
| 1999 | 74 | 0 |
| 2000 | 65 | 0 |
| 2001 | 75 | 36 |
| 2002 | 94 | 72 |
| 2003 | 100 | 93 |
| 2004 | 93 | 111 |
| 2005 | 84 | 113 |
| 2006 | 114 | 102 |
| 2007 | 87 | 120 |
| 2008 | 96 | 134 |
| 2009 | 102 | 110 |
| 2010 | 121 | 130 |
| 2011 | 103 | 131 |
| 2012 | 84 | 99 |
| 2013 | 151 | 120 |
| 2014 | 145 | 125 |
| 2015 | 133 | 126 |
| 2016 | 122 | 117 |
| 2017 | 146 | 137 |
| 2018 | 132 | 148 |
| 2019 | 179 | 187 |
| 2020 | 237 | 163 |
| 2021 | 133 | 119 |
| 2022 | 105 | 136 |
| 2023 | 101 | 126 |
| 2024 | 127 | 146 |
| 2025 | 128 | 99 |
| 2026 | 88 | 95 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H03H 11/04Frequency selective two-port networks2,104
- H03H 11/28Impedance matching networks592
- H03H 11/16Networks for phase shifting494
- H03H 11/24Frequency-independent attenuators464
- H03H 11/26Time-delay networks326
- H03H 11/40Impedance converters145
- H03H 11/34Networks for connecting several sources or loads working on different frequencies or133
- H03H 11/32Networks for transforming balanced signals into unbalanced signals and vice versa126
Recent patents
- Adiabatic circuits for cold scalable electronics6 Oct 2026US 12,754,878 B2Zettaflops LLC
- Radio frequency switch29 Sep 2026US 12,749,797 B2Intel Corporation
- Phase-shifting circuits and radio frequency microwave systems29 Sep 2026US 12,750,038 B2Etra Semiconductor (Suzhou) Co., Ltd.
- Fine trimming of a radio frequency gain by modulating the periphery of a radio frequency switch29 Sep 2026US 12,750,039 B2Skyworks Solutions, Inc.
- Beamforming phase correction in a wireless communication circuit29 Sep 2026US 12,750,104 B2Qorvo US, Inc.
- Passive switched-capacitor filter with tunable complex poles8 Oct 2026US 2026/0312567 A1Apple Inc.
- Phase adjustment circuit8 Oct 2026US 2026/0312568 A1NTT, Inc.
- 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.
- Systems and methods for duty-cycle and phase error detector (dped) with chopping cancellation technique1 Oct 2026US 2026/0303079 A1Taiwan Semiconductor Manfuacturing Company, Ltd.
Most cited
By later US patents
- Method and apparatus for high efficiency rectification for various loads396US 7,868,482 B2Powercast Corporation · 2011
- Tunable filter and method of tuning a filter328US 6,778,023 B2Nokia Corporation · 2004
- Method and apparatus for high efficiency rectification for various loads297US 9,000,616 B2Powercast Corporation · 2015
- Multi-beam active phased array architecture265US 8,160,530 B2ViaSat, Inc. · 2012
- Digitally controlled element sizing220US 5,194,765 AAT&T Bell Laboratories · 1993