H03H 11/525
Simulating frequency dependent negative resistance [fdnr]
Official title: {Simulating frequency dependent negative resistance [FDNR]}
H03H11/525 (Simulating frequency dependent negative resistance [fdnr]) appears on 13 US grants and 5 published applications in this corpus.
Search patents in H03H- Granted patents
- 13
- Published applications
- 5
- Assignees
- 12
- Inventors
- 21
- Latest grant
- 29 Sep 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 2 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Impedance converter to achieve negative capacitance and/or negative inductance for radio frequency front end matching29 Sep 2020US 10,790,805 B2QUALCOMM Incorporated
- Noise-shaped blocker-reject amplifier17 Nov 2009US 7,619,472 B1Newport Media, Inc.
- Optimized gain filtering technique with noise shaping22 Sep 2009US 7,592,863 B2Newport Media, Inc.
- Low-noise filter for a wireless receiver8 Aug 2006US 7,088,985 B2Skyworks Solutions, Inc.
- Active filter having series resonant active filter terminated by parallel resonant active filter11 Aug 1987US 4,686,486 ABritish Telecommunications Public Ltd.Co.
- Impedance converter to achieve negative capacitance and/or negative inductance for radio frequency front end matching22 Nov 2018US 2018/0337660 A1QUALCOMM Incorporated
- Communication system and electronic choke circuit13 Dec 2012US 2012/0313428 A1Panasonic Corporation
- Noise-shaped blocker-reject amplifier10 Dec 2009US 2009/0302944 A1Newport Media, Inc.
- Optimized gain filtering technique with noise shaping4 Dec 2008US 2008/0297239 A1Newport Media, Inc.
- Low-noise filter for a wireless receiver19 May 2005US 2005/0107064 A1Skyworks Solutions, Inc.
Most cited
By later US patents
- Bandstop filters7US 4,315,229 AThe Post Office · 1982
- Noise-shaped blocker-reject amplifier6US 7,619,472 B1Newport Media, Inc. · 2009
- Hybrid integrated impedance converter circuit4US 4,208,641 AHitachi Denshi Kabushiki Kaisha · 1980
- Low-noise filter for a wireless receiver4US 7,088,985 B2Skyworks Solutions, Inc. · 2006
- Multi-node immittance network3US 4,158,824 AInternational Standard Electric Corporation · 1979