H03H 7/12
Bandpass or bandstop filters with adjustable bandwidth and fixed centre frequency
Official title: Bandpass or bandstop filters with adjustable bandwidth and fixed centre frequency (H03H7/09 takes precedence)
H03H7/12 (Bandpass or bandstop filters with adjustable bandwidth and fixed centre frequency) appears on 230 US grants and 204 published applications in this corpus.
Search patents in H03H- Granted patents
- 230
- Published applications
- 204
- Assignees
- 129
- Inventors
- 340
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 2 |
| 2002 | 2 | 22 |
| 2003 | 5 | 6 |
| 2004 | 17 | 6 |
| 2005 | 13 | 12 |
| 2006 | 6 | 5 |
| 2007 | 5 | 3 |
| 2008 | 1 | 7 |
| 2009 | 7 | 1 |
| 2010 | 8 | 6 |
| 2011 | 7 | 8 |
| 2012 | 1 | 6 |
| 2013 | 2 | 8 |
| 2014 | 6 | 9 |
| 2015 | 15 | 13 |
| 2016 | 10 | 11 |
| 2017 | 15 | 9 |
| 2018 | 9 | 9 |
| 2019 | 18 | 20 |
| 2020 | 9 | 10 |
| 2021 | 19 | 6 |
| 2022 | 7 | 4 |
| 2023 | 3 | 10 |
| 2024 | 4 | 7 |
| 2025 | 11 | 3 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electronic circuit including a tunable circuit with a tunable signal path which is controlled by first and second driver circuits29 Sep 2026US 12,750,027 B2Innolux Corporation
- Switchable filter11 Aug 2026US 12,706,362 B2Kmw Inc.
- Low emission three-dimensional multiplexer comprising an inductor structure having multiple quadrupole or dipole inductors2 Jun 2026US 12,646,814 B2QUALCOMM Incorporated
- Electronic device comprising first and second capacitor elements each including a respective capacitor, switch and choke coil24 Mar 2026US 12,587,158 B2Innolux Corporation
- Variable inductor device comprising first and second planar loops configured to be separable by pivoting about a hinge2 Dec 2025US 12,488,938 B2Lam Research Corporation
- Low-Pass Filter Circuitry8 Jan 2026US 2026/0012159 A1Apple Inc.
- Filter device23 Oct 2025US 2025/0330137 A1Murata Manufacturing Co., Ltd.
- Magnetoresistance effect element, magnetic recording element, and high-frequency device17 Jul 2025US 2025/0232789 A1TDK Corporation
- N-path filter16 Jan 2025US 2025/0023536 A1Murata Manufacturing Co., Ltd.
- Low emission three-dimensional frequency multiplexer26 Dec 2024US 2024/0429587 A1QUALCOMM Incorporated
Most cited
By later US patents
- Tunable filter and method of tuning a filter328US 6,778,023 B2Nokia Corporation · 2004
- Tunable horn antenna238US 6,867,744 B2Kyocera Wireless Corp. · 2005
- RF notch filter having multiple notch and variable notch frequency characteristics212US 6,020,783 ASignal Technology Corporation · 2000
- Tunable matching circuit154US 6,825,818 B2Kyocera Wireless Corp. · 2004
- Tunable bandpass filter system and filtering method139US 5,136,267 AAudio Precision, Inc. · 1992