H03H 2011/0488
Notch or bandstop filters
Official title: {Notch or bandstop filters}
H03H2011/0488 (Notch or bandstop filters) appears on 59 US grants and 58 published applications in this corpus.
Search patents in H03H- Granted patents
- 59
- Published applications
- 58
- Assignees
- 53
- Inventors
- 128
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 2 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 1 | 3 |
| 2011 | 3 | 2 |
| 2012 | 2 | 1 |
| 2013 | 3 | 2 |
| 2014 | 3 | 2 |
| 2015 | 5 | 3 |
| 2016 | 2 | 1 |
| 2017 | 2 | 0 |
| 2018 | 3 | 3 |
| 2019 | 7 | 6 |
| 2020 | 3 | 3 |
| 2021 | 3 | 4 |
| 2022 | 1 | 4 |
| 2023 | 3 | 5 |
| 2024 | 3 | 5 |
| 2025 | 8 | 4 |
| 2026 | 2 | 5 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Compact transformer-based notch filter13 Jan 2026US 12,525,958 B2Newracom, Inc.
- Tracking circuit for tracking a frequency of a sweeping signal component in an input signal, filter circuit and method for processing a sweeping signal component in an input signal13 Jan 2026US 12,525,959 B2u-blox AG
- Signal processing circuits and methods18 Nov 2025US 12,476,617 B2Shenzhen Shokz Co., Ltd.
- Filter21 Oct 2025US 12,451,868 B2Novelda AS
- Intelligent power noise reduction14 Oct 2025US 12,445,114 B1Amazon Technologies, Inc.
- Notch filter circuit with all-pass filter for independent control of filter gain and quality factor6 Aug 2026US 2026/0230062 A1QUALCOMM Incorporated
- Spin wave fast tunable filter28 May 2026US 2026/0149157 A1L3Harris Technologies, Inc.
- Wireless Circuitry with Multi-Technology Coexistence5 Mar 2026US 2026/0066927 A1Apple Inc.
- Ripple Reduction Using Chopper Amplifiers26 Feb 2026US 2026/0058622 A1
- Feedforward Notch Filter Circuitry8 Jan 2026US 2026/0012158 A1Apple Inc.
Most cited
By later US patents
- Notch filter for ripple reduction in chopper stabilized amplifiers120US 7,292,095 B2Texas Instruments Incorporated · 2007
- Transmitter filter arrangement for multiband mobile phone78US 6,862,441 B2Nokia Corporation · 2005
- Cavity filtered qubit42US 9,444,430 B1International Business Machines Corporation · 2016
- Filter with controlled offsets for active filter selectivity and DC offset control30US 6,429,733 B1Honeywell International Inc. · 2002
- Switched capacitor notch filter with fast response time17US 8,416,014 B2Allegro MicroSystems, LLC · 2013