H03H 17/0285
Ladder or lattice filters
Official title: {Ladder or lattice filters}
H03H17/0285 (Ladder or lattice filters) appears on 20 US grants and 5 published applications in this corpus.
Search patents in H03H- Granted patents
- 20
- Published applications
- 5
- Assignees
- 16
- Inventors
- 38
- Latest grant
- 11 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 2 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Cascadable filter architecture11 Mar 2025US 12,249,970 B2Imec Vzw
- Tiled transversely-excited film bulk acoustic resonator high power filters26 Nov 2024US 12,155,374 B2Murata Manufacturing Co., Ltd.
- Filtering discrete time signals using a notch filter18 Aug 2015US 9,112,479 B2Indian Institute of Science
- Methods and apparatus for generating a sinusoidal motor drive signal for a MEMS gyroscope3 Jan 2006US 6,982,538 B2Honeywell International Inc.
- Lattice structure for IIR and FIR filters with automatic normalization27 Aug 2002US 6,442,581 B1Creative Technologies Corp.
- Ssh circuit and electronic device18 Jul 2024US 2024/0243717 A1Rohm Co., Ltd.
- Tiled transversely-excited film bulk acoustic resonator high power filters6 Oct 2022US 2022/0321099 A1Resonant Inc.
- Cascadable filter architecture6 Jan 2022US 2022/0006446 A1Imec Vzw
- Filtering Discrete Time Signals Using a Notch Filter19 Jul 2012US 2012/0185525 A1Indian Institute of Science
- Methods and apparatus for generating a sinusoidal motor drive signal for a MEMS gyroscope11 Mar 2004US 2004/0046520 A1Honeywell International Inc.
Most cited
By later US patents
- System using digital filter for waveform or speech synthesis26US 4,344,148 ATexas Instruments Incorporated · 1982
- Lattice filter for waveform or speech synthesis circuits using digital logic24US 4,209,844 ATexas Instruments Incorporated · 1980
- Multiplierless interpolator for a delta-sigma digital to analog converter17US 6,313,773 B1Sonic Innovations, Inc. · 2001
- Lattice structure for IIR and FIR filters with automatic normalization16US 6,442,581 B1Creative Technologies Corp. · 2002
- Time multiplexed n-ordered digital filter13US 4,398,262 AMotorola, Inc. · 1983