H03J 3/18
By discharge tube or semiconductor device simulating variable reactance
Official title: by discharge tube or semiconductor device simulating variable reactance
H03J3/18 (By discharge tube or semiconductor device simulating variable reactance) appears on 217 US grants and 135 published applications in this corpus.
Search patents in H03J- Granted patents
- 217
- Published applications
- 135
- Assignees
- 111
- Inventors
- 302
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 13 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 9 | 0 |
| 1981 | 6 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 8 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 5 |
| 2002 | 7 | 6 |
| 2003 | 7 | 12 |
| 2004 | 7 | 12 |
| 2005 | 11 | 22 |
| 2006 | 10 | 3 |
| 2007 | 13 | 12 |
| 2008 | 12 | 12 |
| 2009 | 10 | 14 |
| 2010 | 14 | 8 |
| 2011 | 7 | 3 |
| 2012 | 7 | 6 |
| 2013 | 3 | 0 |
| 2014 | 4 | 0 |
| 2015 | 3 | 1 |
| 2016 | 2 | 3 |
| 2017 | 0 | 4 |
| 2018 | 4 | 3 |
| 2019 | 4 | 3 |
| 2020 | 3 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 2 |
| 2023 | 1 | 0 |
| 2024 | 1 | 2 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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
- Low-temperature radio-frequency tuning circuit3 Sep 2024US 12,080,488 B2UCL Business PLC
- Broadband wireless system for multi-modal imaging25 Apr 2023US 11,637,527 B2Board of Trustees of Michigan State University
- Printed reconfigurable electronic circuit6 Oct 2020US 10,797,108 B2Her Majesty the Queen in the Right of Canada, as represented by the Minister of Industry, through the Communication Research Centre Canada
- Metal-semiconductor-metal two-dimensional electron gas varactor and method of manufacturing the same30 Jun 2020US 10,700,667 B2Gwangju Institute of Science and Technology
- Electronic device8 May 2025US 2025/0150061 A1Innolux Corporation
- Electronic device7 Nov 2024US 2024/0372533 A1Innolux Corporation
- Varactor tuned input trap10 Oct 2024US 2024/0339974 A1
- Low-temperature radio-frequency tuning circuit3 Nov 2022US 2022/0351911 A1UCL Business PLC
- Broadband Wireless System for Multi-Modal Imaging29 Sep 2022US 2022/0311383 A1Board of Trustees of Michigan State University
Most cited
By later US patents
- System and method for providing a low power receiver design114US 6,377,315 B1Broadcom Corporation · 2002
- System and method for narrow band PLL tuning91US 6,426,680 B1Broadcom Corporation · 2002
- Electronic tuning antenna system87US 4,381,566 AMatsushita Electric Industrial Co., Ltd. · 1983
- Tuning systems on dielectric substrates79US 4,619,001 AMatsushita Electric Industrial Co., Ltd. · 1986
- System and method for on-chip filter tuning78US 6,285,865 B1Broadcom Corporation · 2001