H03H 15/00
Transversal filters
Official title: Transversal filters (electromechanical filters H03H9/46, H03H9/70)
H03H15/00 (Transversal filters) appears on 425 US grants and 201 published applications in this corpus.
Search patents in H03H- Granted patents
- 425
- Published applications
- 201
- Assignees
- 165
- Inventors
- 549
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 15 | 0 |
| 1978 | 14 | 0 |
| 1979 | 23 | 0 |
| 1980 | 20 | 0 |
| 1981 | 36 | 0 |
| 1982 | 22 | 0 |
| 1983 | 9 | 0 |
| 1984 | 11 | 0 |
| 1985 | 7 | 0 |
| 1986 | 7 | 0 |
| 1987 | 7 | 0 |
| 1988 | 5 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 2 |
| 2002 | 1 | 5 |
| 2003 | 4 | 4 |
| 2004 | 4 | 10 |
| 2005 | 2 | 10 |
| 2006 | 6 | 8 |
| 2007 | 10 | 6 |
| 2008 | 10 | 6 |
| 2009 | 7 | 22 |
| 2010 | 6 | 22 |
| 2011 | 23 | 14 |
| 2012 | 18 | 9 |
| 2013 | 24 | 25 |
| 2014 | 21 | 11 |
| 2015 | 10 | 7 |
| 2016 | 10 | 5 |
| 2017 | 11 | 11 |
| 2018 | 9 | 2 |
| 2019 | 12 | 3 |
| 2020 | 1 | 1 |
| 2021 | 3 | 4 |
| 2022 | 3 | 6 |
| 2023 | 2 | 0 |
| 2024 | 5 | 2 |
| 2025 | 3 | 3 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H03H 15/02Transversal filters: using analogue shift registers249
- H03H 2015/007Programmable filtersIndexing code38
- H03H 2015/026Matched filters in charge domainIndexing code7
- H03H 2015/005Comprising capacitors implemented with mems technologyIndexing code4
- H03H 2015/002Computation saving measuresIndexing code1
Recent patents
- Cascading of bucket brigade delay devices9 Jun 2026US 12,652,025 B2Sound Semiconductor, Inc.
- Apparatus for providing parallel filtering2 Sep 2025US 12,407,332 B2Lear Corporation
- Filters3 Jun 2025US 12,323,160 B2Cirrus Logic, Inc.
- Cascadable filter architecture11 Mar 2025US 12,249,970 B2Imec Vzw
- Analog FIR filter19 Nov 2024US 12,149,221 B2Semtech Corporation
- Cascading of bucket brigade delay devices28 May 2026US 2026/0149431 A1Sound Semiconductor, Inc.
- Reconfigurable filtering device and system for acquiring radiofrequency signals incorporating such a filtering device21 May 2026US 2026/0142360 A1Centre National De La Recherche Scientifique
- Switch-capacitor filter for receiver baseband anti-aliasing signal filtering21 May 2026US 2026/0142670 A1QUALCOMM Incorporated
- Filters21 Aug 2025US 2025/0266845 A1Cirrus Logic International Semiconductor Ltd.
- Electric filtering circuitry for filtering ripples of an input signal7 Aug 2025US 2025/0253836 A1ams International AG
Most cited
By later US patents
- Method and system for signal emulation200US 7,804,760 B2Quellan, Inc. · 2010
- High pass switched capacitor filter section130US 4,210,872 AAmerican Microsystems, Inc. · 1980
- Charge sharing analog computation circuitry and applications127US 8,547,272 B2Analog Devices, Inc. · 2013
- Fast high precision discrete-time analog finite impulse response filter120US 5,563,819 ACirrus Logic, Inc. · 1996
- Electrical data pulse slicing111US 4,358,790 AU. S. Philips Corporation · 1982