H03H 9/58
Multiple crystal filters
H03H9/58 (Multiple crystal filters) appears on 1,082 US grants and 1,111 published applications in this corpus.
Search patents in H03H- Granted patents
- 1,082
- Published applications
- 1,111
- Assignees
- 195
- Inventors
- 1,182
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 6 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 6 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 10 | 0 |
| 1997 | 9 | 0 |
| 1998 | 11 | 0 |
| 1999 | 27 | 0 |
| 2000 | 20 | 0 |
| 2001 | 11 | 3 |
| 2002 | 17 | 19 |
| 2003 | 13 | 16 |
| 2004 | 17 | 23 |
| 2005 | 19 | 47 |
| 2006 | 27 | 27 |
| 2007 | 25 | 42 |
| 2008 | 31 | 26 |
| 2009 | 40 | 24 |
| 2010 | 23 | 16 |
| 2011 | 12 | 27 |
| 2012 | 20 | 34 |
| 2013 | 17 | 28 |
| 2014 | 25 | 20 |
| 2015 | 36 | 31 |
| 2016 | 29 | 35 |
| 2017 | 32 | 47 |
| 2018 | 34 | 60 |
| 2019 | 69 | 85 |
| 2020 | 63 | 85 |
| 2021 | 75 | 66 |
| 2022 | 50 | 82 |
| 2023 | 51 | 81 |
| 2024 | 68 | 79 |
| 2025 | 86 | 55 |
| 2026 | 53 | 53 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Negative capacitance tuning in an acoustic filter circuit25 Aug 2026US 12,719,446 B2Qorvo US, Inc.
- Filter module with improved linearity response25 Aug 2026US 12,719,447 B2Skyworks Solutions, Inc.
- Resonators with different membrane thicknesses on the same die18 Aug 2026US 12,712,523 B2Murata Manufacturing Co., Ltd.
- Method for performing a layout of a bulk acoustic wave filter4 Aug 2026US 12,700,849 B2Skyworks Solutions, Inc.
- Acoustic wave device28 Jul 2026US 12,695,440 B2Murata 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.
- Acoustic wave device and acoustic wave filter3 Sep 2026US 2026/0261250 A1Murata Manufacturing Co., Ltd.
- Resonator, Filter, and Communication Device27 Aug 2026US 2026/0254439 A1Huawei Technologies Co., Ltd.
- Acoustic wave device with ceramic substrate20 Aug 2026US 2026/0246444 A1Skyworks Solutions, Inc.
Most cited
By later US patents
- Tunable thin film acoustic resonators and method for making the same294US 5,587,620 AHewlett-Packard Company · 1996
- Cavity spanning bottom electrode of a substrate-mounted bulk wave acoustic resonator268US 6,384,697 B1Agilent Technologies, Inc. · 2002
- Piezoelectric resonator operating in thickness shear mode265US 8,829,766 B2Epcos AG · 2014
- Method of making tunable thin film acoustic resonators250US 5,873,153 AHewlett-Packard Company · 1999
- Controlled effective coupling coefficients for film bulk acoustic resonators214US 6,472,954 B1Agilent Technologies, Inc. · 2002