H03H 9/14567
Stepped-fan shaped transducers
Official title: {Stepped-fan shaped transducers}
H03H9/14567 (Stepped-fan shaped transducers) appears on 27 US grants and 11 published applications in this corpus.
Search patents in H03H- Granted patents
- 27
- Published applications
- 11
- Assignees
- 20
- Inventors
- 49
- Latest grant
- 30 Apr 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 4 |
| 2005 | 4 | 1 |
| 2006 | 2 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 2 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electro-acoustic transducer and electro-acoustic component comprising an electro-acoustic transducer30 Apr 2019US 10,277,195 B2SnapTrack, Inc.
- Saw filter with improved stop band suppression9 May 2017US 9,647,637 B2SnapTrack, Inc.
- Elastic wave filter including a grating reflector between tapered input and output IDT electrodes26 Jun 2012US 8,207,800 B2Nihon Dempa Kogyo Co., Ltd.
- Elastic surface wave device comprising dummy electrodes31 Jan 2012US 8,106,726 B2National University Corporation Chiba University
- Surface wave devices with low passband ripple4 Apr 2006US 7,023,300 B2
- Method for designing saw resonator and computing device-readable recording medium on which method is recorded25 Jun 2026US 2026/0180550 A1WiPAM, Inc.
- Electro-Acoustic Transducer and Electro-Acoustic Component Comprising an Electro-Acoustic Transducer1 Mar 2018US 2018/0062610 A1SnapTrack, Inc.
- Saw filter with improved stop band suppression27 Aug 2015US 2015/0244348 A1Epcos AG
- Elastic wave filter29 Apr 2010US 2010/0102901 A1Nihon Dempa Kogyo Co., Ltd.
- Elastic surface wave device20 Aug 2009US 2009/0206954 A1National University Corporation Chiba University
Most cited
By later US patents
- Surface acoustic wave filter240US 6,707,229 B1Tele Filter Zweigniederlassung Der Dover Germany GmbH · 2004
- Surface acoustic wave device employing reflectors38US 4,410,823 AZenith Radio Corporation · 1983
- Band reject filters33US 6,924,715 B2Nortel Networks Limited · 2005
- Acoustic surface wave resonator with suppressed direct coupled response32US 4,081,769 ATexas Instruments Incorporated · 1978
- Efficient surface acoustic wave device capable of excitation in plural frequency bands, and signal receiver and communication system utilizing the same19US 5,477,098 ACanon Kabushiki Kaisha · 1995