H03H 9/584
Coupled resonator filters [cfr]
Official title: {Coupled Resonator Filters [CFR]}
H03H9/584 (Coupled resonator filters [cfr]) appears on 114 US grants and 129 published applications in this corpus.
Search patents in H03H- Granted patents
- 114
- Published applications
- 129
- Assignees
- 42
- Inventors
- 161
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 3 |
| 2005 | 3 | 15 |
| 2006 | 6 | 5 |
| 2007 | 2 | 12 |
| 2008 | 13 | 10 |
| 2009 | 10 | 11 |
| 2010 | 10 | 3 |
| 2011 | 4 | 10 |
| 2012 | 6 | 8 |
| 2013 | 5 | 7 |
| 2014 | 6 | 4 |
| 2015 | 7 | 6 |
| 2016 | 6 | 1 |
| 2017 | 2 | 1 |
| 2018 | 0 | 5 |
| 2019 | 3 | 13 |
| 2020 | 5 | 0 |
| 2021 | 17 | 5 |
| 2022 | 2 | 1 |
| 2023 | 2 | 1 |
| 2024 | 0 | 4 |
| 2025 | 1 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Acoustic wave device28 Jul 2026US 12,695,440 B2Murata Manufacturing Co., Ltd.
- Stacked resonators with shared reflector layers5 May 2026US 12,620,974 B2Qorvo US, Inc.
- Acoustic transformer in transmission chain15 Jul 2025US 12,362,728 B2Qorvo US, Inc.
- Acoustic filter circuit for noise suppression outside resonance frequency12 Sep 2023US 11,757,430 B2Qorvo US, Inc.
- Coupled resonator filter device18 Apr 2023US 11,632,097 B2Qorvo US, Inc.
- Device with piezoelectric film on semiconductor substrate30 Apr 2026US 2026/0121617 A1
- Cascaded coupled resonator filter systems and methods of operating the same1 Jan 2026US 2026/0005674 A1Qorvo US, Inc.
- Acoustic transformer in transmission chain28 Aug 2025US 2025/0274106 A1
- Acoustic wave device9 Jan 2025US 2025/0015784 A1Murata Manufacturing Co., Ltd.
- Tunable coupled resonator filter structure12 Dec 2024US 2024/0413809 A1Qorvo US, Inc.
Most cited
By later US patents
- Laterally-coupled acoustic resonators164US 9,093,979 B2Avago Technologies General IP (Singapore) Pte. Ltd. · 2015
- Coupled resonator bulk acoustic wave filter163US 6,720,844 B1TFR Technologies, Inc. · 2004
- Cavity-less film bulk acoustic resonator (FBAR) devices140US 7,332,985 B2Avago Technologies Wireless IP (Singapore) Pte. Ltd. · 2008
- Microwave film bulk acoustic resonator and manifolded filter bank130US 5,185,589 AWestinghouse Electric Corp. · 1993
- Film bulk acoustic resonator (FBAR) devices with simplified packaging121US 7,358,831 B2Avago Technologies Wireless IP (Singapore) Pte. Ltd. · 2008