H03H 9/56
Monolithic crystal filters
H03H9/56 (Monolithic crystal filters) appears on 1,178 US grants and 1,396 published applications in this corpus.
Search patents in H03H- Granted patents
- 1,178
- Published applications
- 1,396
- Assignees
- 218
- Inventors
- 1,320
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 7 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 1 | 0 |
| 1982 | 10 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 7 | 0 |
| 1993 | 3 | 0 |
| 1994 | 7 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 11 | 0 |
| 1998 | 7 | 0 |
| 1999 | 11 | 0 |
| 2000 | 9 | 0 |
| 2001 | 11 | 7 |
| 2002 | 15 | 19 |
| 2003 | 14 | 14 |
| 2004 | 13 | 26 |
| 2005 | 16 | 24 |
| 2006 | 17 | 22 |
| 2007 | 17 | 22 |
| 2008 | 19 | 19 |
| 2009 | 22 | 9 |
| 2010 | 9 | 14 |
| 2011 | 11 | 13 |
| 2012 | 11 | 17 |
| 2013 | 7 | 16 |
| 2014 | 15 | 9 |
| 2015 | 17 | 19 |
| 2016 | 21 | 28 |
| 2017 | 16 | 34 |
| 2018 | 28 | 46 |
| 2019 | 59 | 74 |
| 2020 | 61 | 107 |
| 2021 | 85 | 139 |
| 2022 | 81 | 218 |
| 2023 | 73 | 147 |
| 2024 | 154 | 115 |
| 2025 | 179 | 153 |
| 2026 | 79 | 85 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Composite transversely-excited film bulk acoustic resonator circuits having a capacitor for improved rejection6 Oct 2026US 12,756,378 B2Murata Manufacturing Co., Ltd.
- Metal-piezoelectric-metal capacitor29 Sep 2026US 12,750,032 B2Murata Manufacturing Co., Ltd.
- Acoustic wave device29 Sep 2026US 12,750,034 B2Murata Manufacturing Co., Ltd.
- Acoustic wave device22 Sep 2026US 12,744,507 B2Murata Manufacturing Co., Ltd.
- Acoustic wave device having stacked piezoelectric layers between electrodes22 Sep 2026US 12,744,513 B2Skyworks Global Pte. Ltd.
- Bulk acoustic wave filter for second harmonic residue reduction8 Oct 2026US 2026/0312566 A1Skyworks Solutions, Inc.
- Acoustic wave device and filter device1 Oct 2026US 2026/0303055 A1Murata Manufacturing Co., Ltd.
- Stacked acoustic wave device assembly17 Sep 2026US 2026/0280522 A1Skyworks Solutions, Inc.
- Low-loss non-adjacent-band rejection topologies using baw resonators17 Sep 2026US 2026/0280525 A1Qorvo US, Inc.
- Radio-frequency module and communication device17 Sep 2026US 2026/0280526 A1Murata Manufacturing Co., Ltd.
Most cited
By later US patents
- Duplexer incorporating thin-film bulk acoustic resonators (FBARs)338US 6,262,637 B1Agilent Technologies, Inc. · 2001
- Laterally coupled bulk acoustic wave filter with improved passband characteristics282US 9,219,466 B2Teknologian tutkimuskeskus VTT Oy · 2015
- Transversely-excited film bulk acoustic resonator276US 10,491,192 B1Resonant Inc. · 2019
- Piezoelectric resonator operating in thickness shear mode265US 8,829,766 B2Epcos AG · 2014
- Solidly-mounted transversely-excited film bulk acoustic resonator256US 10,601,392 B2Resonant Inc. · 2020