H03J
Tuning resonant circuits
Official title: Tuning resonant circuits; selecting resonant circuits
H03J (Tuning resonant circuits) appears on 4,806 US grants and 2,434 published applications in this corpus.
Search patents in H03J- Granted patents
- 4,806
- Published applications
- 2,434
- Assignees
- 1,188
- Inventors
- 6,553
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 168 | 0 |
| 1977 | 121 | 0 |
| 1978 | 113 | 0 |
| 1979 | 97 | 0 |
| 1980 | 141 | 0 |
| 1981 | 146 | 0 |
| 1982 | 98 | 0 |
| 1983 | 87 | 0 |
| 1984 | 89 | 0 |
| 1985 | 90 | 0 |
| 1986 | 81 | 0 |
| 1987 | 44 | 0 |
| 1988 | 52 | 0 |
| 1989 | 68 | 0 |
| 1990 | 60 | 0 |
| 1991 | 69 | 0 |
| 1992 | 58 | 0 |
| 1993 | 66 | 0 |
| 1994 | 61 | 0 |
| 1995 | 74 | 0 |
| 1996 | 102 | 0 |
| 1997 | 76 | 0 |
| 1998 | 114 | 0 |
| 1999 | 104 | 0 |
| 2000 | 138 | 0 |
| 2001 | 109 | 50 |
| 2002 | 111 | 128 |
| 2003 | 113 | 157 |
| 2004 | 143 | 152 |
| 2005 | 127 | 182 |
| 2006 | 146 | 179 |
| 2007 | 159 | 176 |
| 2008 | 115 | 147 |
| 2009 | 134 | 157 |
| 2010 | 130 | 130 |
| 2011 | 123 | 111 |
| 2012 | 131 | 91 |
| 2013 | 124 | 84 |
| 2014 | 114 | 96 |
| 2015 | 105 | 98 |
| 2016 | 111 | 91 |
| 2017 | 76 | 66 |
| 2018 | 77 | 66 |
| 2019 | 87 | 74 |
| 2020 | 80 | 66 |
| 2021 | 48 | 37 |
| 2022 | 47 | 31 |
| 2023 | 27 | 14 |
| 2024 | 20 | 24 |
| 2025 | 19 | 13 |
| 2026 | 13 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- H03J 1/00Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits1,564
- H03J 7/00Automatic frequency control1,312
- H03J 5/00Discontinuous tuning1,189
- H03J 2200/00Indexing scheme relating to tuning resonant circuits and selecting resonant circuitsIndexing code1,179
- H03J 3/00Continuous tuning786
- H03J 9/00Remote-control of tuned circuits211
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
- 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
- Method for performing antenna tuning control of wireless transceiver device in wireless communications system, and associated apparatus4 Aug 2026US 12,700,888 B2Mediatek Inc.
- Dynamic tuning of an RFID receiver to achieve substantially maximum received signal strength28 Jul 2026US 12,694,255 B2RFMicron, Inc.
- Medical implant system including base station and medical implant6 Aug 2026US 2026/0229924 A1Nyxoah SA
- 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.
- Adjustment of power and frequency based on three or more states9 Jul 2026US 2026/0196444 A1Lam Research Corporation
- 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.
Most cited
By later US patents
- Graphical user interface for interactive television with an animated agent733US 5,524,195 ASun Microsystems, Inc. · 1996
- Graphical user interface with method and apparatus for interfacing to remote devices720US 6,020,881 ASun Microsystems, Inc. · 2000
- Method and apparatus for providing location-based information via a computer network718US 6,677,894 B2SnapTrack, Inc. · 2004
- Client-server based remote locator device710US 6,131,067 ASnapTrack, Inc. · 2000
- Method and circuit for acquisition by a radio receiver683US 5,711,001 AMotorola, Inc. · 1998