H03H 9/6406
Filters characterised by a particular frequency characteristic
Official title: {Filters characterised by a particular frequency characteristic}
H03H9/6406 (Filters characterised by a particular frequency characteristic) appears on 382 US grants and 359 published applications in this corpus.
Search patents in H03H- Granted patents
- 382
- Published applications
- 359
- Assignees
- 120
- Inventors
- 507
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 5 | 1 |
| 2002 | 4 | 4 |
| 2003 | 5 | 3 |
| 2004 | 7 | 5 |
| 2005 | 5 | 4 |
| 2006 | 3 | 2 |
| 2007 | 1 | 2 |
| 2008 | 4 | 8 |
| 2009 | 7 | 2 |
| 2010 | 9 | 9 |
| 2011 | 7 | 12 |
| 2012 | 8 | 11 |
| 2013 | 5 | 6 |
| 2014 | 12 | 7 |
| 2015 | 11 | 9 |
| 2016 | 8 | 8 |
| 2017 | 15 | 22 |
| 2018 | 10 | 24 |
| 2019 | 22 | 31 |
| 2020 | 27 | 39 |
| 2021 | 25 | 62 |
| 2022 | 27 | 32 |
| 2023 | 28 | 17 |
| 2024 | 49 | 19 |
| 2025 | 25 | 11 |
| 2026 | 11 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Filter and filter module6 Oct 2026US 12,756,374 B2Murata Manufacturing Co., Ltd.
- Filter with multiple outputs or inputs to implement multiple filter frequency responses29 Sep 2026US 12,750,037 B2RF360 Singapore Pte. Ltd.
- Surface acoustic wave device30 Jun 2026US 12,671,387 B2
- Surface acoustic wave sensor assembly5 May 2026US 12,620,962 B2APPLIED Materials.Inc.
- Acoustic wave devices with thermal bypass21 Apr 2026US 12,609,670 B2Skyworks Solutions, Inc.
- Acoustic wave device and multiplexer20 Aug 2026US 2026/0246451 A1Murata Manufacturing Co., Ltd.
- Acoustic wave devices with thermal bypass23 Jul 2026US 2026/0213726 A1Skyworks Solutions, Inc.
- Surface acoustic wave resonator having multilayer piezoelectric substrate with gap regions having reduced permittivity or piezoelectricity for reduced nonlinear response25 Jun 2026US 2026/0180544 A1Skyworks Global Pte. Ltd.
- Enhancing spurious rejection in an acoustic filter circuit21 May 2026US 2026/0142648 A1Qorvo US, Inc.
- Surface acoustic wave (saw) filter having temperature compensation layer21 May 2026US 2026/0142649 A1Wisol Co., Ltd.
Most cited
By later US patents
- Layer acoustic wave device and method of making the same290US 7,619,347 B1RF Micro Devices, Inc. · 2009
- Dual mode transmitter-receiver and decoder for RF transponder tags180US 6,433,671 B1X-Cyte, Inc. · 2002
- Multiplexer, radio-frequency front-end circuit, and communication device162US 10,644,674 B2Murata Manufacturing Co., Ltd. · 2020
- Transversely-excited film bulk acoustic resonator with half-lambda dielectric layer150US 10,868,510 B2Resonant Inc. · 2020
- Transversely-excited film bulk acoustic resonator package and method146US 10,819,309 B1Resonant Inc. · 2020