H03H 9/70
Multiple-port networks for connecting several sources or loads, working on different frequencies
Official title: Multiple-port networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
H03H9/70 (Multiple-port networks for connecting several sources or loads, working on different frequencies) appears on 1,503 US grants and 1,688 published applications in this corpus.
Search patents in H03H- Granted patents
- 1,503
- Published applications
- 1,688
- Assignees
- 181
- Inventors
- 1,253
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 2 | 0 |
| 1978 | 6 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 7 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 4 |
| 2002 | 13 | 16 |
| 2003 | 4 | 20 |
| 2004 | 17 | 28 |
| 2005 | 23 | 35 |
| 2006 | 21 | 29 |
| 2007 | 25 | 38 |
| 2008 | 27 | 32 |
| 2009 | 33 | 29 |
| 2010 | 29 | 33 |
| 2011 | 27 | 33 |
| 2012 | 27 | 53 |
| 2013 | 26 | 54 |
| 2014 | 28 | 45 |
| 2015 | 76 | 46 |
| 2016 | 56 | 71 |
| 2017 | 59 | 102 |
| 2018 | 80 | 99 |
| 2019 | 119 | 164 |
| 2020 | 126 | 170 |
| 2021 | 118 | 137 |
| 2022 | 109 | 96 |
| 2023 | 95 | 116 |
| 2024 | 105 | 102 |
| 2025 | 113 | 76 |
| 2026 | 85 | 60 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Multiplexer with dies of different acoustic velocity29 Sep 2026US 12,750,035 B2Skyworks Solutions, Inc.
- Filter with multiple outputs or inputs to implement multiple filter frequency responses29 Sep 2026US 12,750,037 B2RF360 Singapore Pte. Ltd.
- Fuse capacitor electrostatic discharge (ESD) protection for electroacoustic devices15 Sep 2026US 12,738,924 B2QUALCOMM Incorporated
- Multiplexer1 Sep 2026US 12,726,172 B2Murata Manufacturing Co., Ltd.
- High-frequency module, filter device, and communication device1 Sep 2026US 12,726,223 B2Murata Manufacturing Co., Ltd.
- Multiplexer8 Oct 2026US 2026/0312565 A1Murata Manufacturing Co., Ltd.
- Bulk acoustic wave filter for second harmonic residue reduction8 Oct 2026US 2026/0312566 A1Skyworks Solutions, Inc.
- Multiplexer and filter device1 Oct 2026US 2026/0303063 A1Murata Manufacturing Co., Ltd.
- Switchable acoustic filter topologies with improved performance1 Oct 2026US 2026/0303064 A1Skyworks Solutions, Inc.
- Multiplexer filter with reduced out of band impedance24 Sep 2026US 2026/0291465 A1Skyworks Solutions, Inc.
Most cited
By later US patents
- Duplexer incorporating thin-film bulk acoustic resonators (FBARs)338US 6,262,637 B1Agilent Technologies, Inc. · 2001
- Piezoelectric device and method for producing same295US 7,427,824 B2Murata Manufacturing Co., Ltd. · 2008
- Controlled effective coupling coefficients for film bulk acoustic resonators214US 6,472,954 B1Agilent Technologies, Inc. · 2002
- Filters and duplexers utilizing thin film stacked crystal filter structures and thin film bulk acoustic wave resonators203US 5,910,756 ANokia Mobile Phones Ltd. · 1999
- Bulk acoustic wave resonator with two piezoelectric layers as balun in filters and duplexers180US 6,670,866 B2Nokia Corporation · 2003