H03J 3/32
Arrangements for ensuring tracking with variable capacitors
H03J3/32 (Arrangements for ensuring tracking with variable capacitors) appears on 32 US grants and 10 published applications in this corpus.
Search patents in H03J- Granted patents
- 32
- Published applications
- 10
- Assignees
- 27
- Inventors
- 61
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 2 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 2 | 1 |
| 2009 | 2 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Bimodal EPR resonator with automatic electrically controlled inter-mode isolation10 Feb 2026US 12,546,838 B2West Virginia University Board of Governors on behalf of West Virginia University
- Differential switchable capacitors for radiofrequency power amplifiers8 Dec 2020US 10,862,425 B2Shenzhen Goodix Technology Co., Ltd.
- Signal-tracking RF bandstop filter23 Apr 2019US 10,270,480 B1The United States of America as represented by the Secretary of the Navy
- Tracking filter for a television tuner26 Feb 2013US 8,385,867 B2Silicon Laboratories Inc.
- Automatically tuned tail filter30 Mar 2010US 7,688,153 B2Telefonaktiebolaget'l M Ericsson (Publ)
- Bimodal epr resonator with automatic electrically controlled inter-mode isolation12 Sep 2024US 2024/0302462 A1West Virginia University Board of Governors on behalf of West Virginia University
- Differential switchable capacitors for radiofrequency power amplifiers29 Oct 2020US 2020/0343857 A1Goodix Technology Inc.
- Signal-Tracking RF Bandstop Filter11 Apr 2019US 2019/0109609 A1The Government of the United States of America, as represented by the Secretary of the Navy
- Tracking Filter For A Television Tuner30 Dec 2010US 2010/0328546 A1Silicon Laboratories Inc.
- Automatically Tuned Tail Filter30 Oct 2008US 2008/0266005 A1Telefonaktiebolaget'l M Ericsson (Publ)
Most cited
By later US patents
- Tuning of a resonant circuit in a communications receiver54US 4,685,150 ADeutsche Thomson-Brandt GmbH · 1987
- Self tracking tuner41US 4,334,323 AZenith Radio Corporation · 1982
- Method and apparatus for automatic tuning calibration of electrically tuned filters34US 5,822,687 AMotorola, Inc. · 1998
- Apparatus and method for automatic selection of broadband frequency channel using double frequency conversion17US 6,438,361 B1Electronics and Telecommunications Research Institute · 2002
- Tuning system for television sets14US 4,736,456 ADeutsche Thomson-Brandt GmbH · 1988