H03J 3/20
Continuous tuning: of single resonant circuit by varying inductance only or capacitance
Official title: of single resonant circuit by varying inductance only or capacitance only
H03J3/20 (Continuous tuning: of single resonant circuit by varying inductance only or capacitance) appears on 267 US grants and 271 published applications in this corpus.
Search patents in H03J- Granted patents
- 267
- Published applications
- 271
- Assignees
- 154
- Inventors
- 454
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 3 |
| 2003 | 4 | 6 |
| 2004 | 6 | 6 |
| 2005 | 6 | 11 |
| 2006 | 3 | 9 |
| 2007 | 11 | 10 |
| 2008 | 5 | 15 |
| 2009 | 11 | 14 |
| 2010 | 9 | 13 |
| 2011 | 8 | 17 |
| 2012 | 16 | 10 |
| 2013 | 9 | 12 |
| 2014 | 12 | 14 |
| 2015 | 13 | 6 |
| 2016 | 15 | 14 |
| 2017 | 10 | 13 |
| 2018 | 16 | 14 |
| 2019 | 18 | 25 |
| 2020 | 19 | 15 |
| 2021 | 17 | 13 |
| 2022 | 14 | 9 |
| 2023 | 10 | 3 |
| 2024 | 4 | 8 |
| 2025 | 6 | 5 |
| 2026 | 3 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for impedance tuning22 Sep 2026US 12,744,516 B2Apple Inc.
- VHF-UHF harmonic load pull tuner8 Sep 2026US 12,732,164 B1
- Dynamic tuning of an RFID receiver to achieve substantially maximum received signal strength28 Jul 2026US 12,694,255 B2RFMicron, Inc.
- Selective frequency shifting of qubits21 Oct 2025US 12,451,870 B2IQM Finland Oy
- Devices and methods for improving voltage handling and/or bi-directionality of stacks of elements when connected between terminals30 Sep 2025US 12,431,890 B2pSemi Corporation
- Low phase noise phase locked loop16 Jul 2026US 2026/0205126 A1NXP B. V.
- Low phase noise phase locked loop16 Jul 2026US 2026/0205128 A1NXP B. V.
- Superconducting tunable resonator with wide tuning range utilizing radio frequency superconducting quantum interference devices and multi-stacked capacitor11 Jun 2026US 2026/0165035 A1Dell Products L. P.
- Methods and Apparatuses for Use in Tuning Reactance in a Circuit Device19 Mar 2026US 2026/0081595 A1pSemi Corporation
- Clockless self tuning rfid tag12 Mar 2026US 2026/0074679 A1NXP B. V.
Most cited
By later US patents
- Tunable filter and method of tuning a filter328US 6,778,023 B2Nokia Corporation · 2004
- Tunable-trimmable micro electro mechanical system (MEMS) capacitor127US 5,959,516 ARockwell Science Center, Inc. · 1999
- Devices and methods for improving voltage handling and/or bi-directionality of stacks of elements when connected between terminals78US 8,638,159 B2Peregrine Semiconductor Corporation · 2014
- Methods and apparatuses for use in tuning reactance in a circuit device69US 9,197,194 B2Peregrine Semiconductor Corporation · 2015
- Method and apparatus for use in digitally tuning a capacitor in an integrated circuit device66US 9,024,700 B2Peregrine Semiconductor Corporation · 2015