H03F 3/608
Reflection amplifiers, i.e. amplifiers using a one-port amplifying element and a multiport
Official title: {Reflection amplifiers, i.e. amplifiers using a one-port amplifying element and a multiport coupler (H03F7/00 takes precedence)}
H03F3/608 (Reflection amplifiers, i.e. amplifiers using a one-port amplifying element and a multiport) appears on 36 US grants and 11 published applications in this corpus.
Search patents in H03F- Granted patents
- 36
- Published applications
- 11
- Assignees
- 27
- Inventors
- 63
- Latest grant
- 30 Jul 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 2 | 1 |
| 2017 | 0 | 0 |
| 2018 | 2 | 1 |
| 2019 | 0 | 3 |
| 2020 | 4 | 2 |
| 2021 | 2 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Very narrowband and wideband negative resistance amplifiers with a tuneable center frequency using a coupler30 Jul 2024US 12,052,002 B2
- Very narrowband and wideband negative resistance amplifiers with a tuneable center frequency2 Jan 2024US 11,863,131 B1
- Amplifier devices with reflection absorption3 Aug 2021US 11,082,016 B2NXP USA, Inc.
- Communication node and method for generating beamformed signals by backscattering15 Jun 2021US 11,038,571 B2Telefonaktiebolaget LM Ericsson (publ)
- Transponder stabilization24 Nov 2020US 10,847,899 B2Norbit ITS
- Very narrowband and wideband negative resistance amplifiers with a tuneable center frequency using a coupler1 Feb 2024US 2024/0039485 A1
- Communication node and method for generating beamformed signals by backscattering6 May 2021US 2021/0135721 A1Telefonaktiebolaget LM Ericsson (publ)
- Amplifier devices with reflection absorption19 Nov 2020US 2020/0366257 A1NXP USA, Inc.
- Lossless lobing circuit for multi-subarray tracking30 Apr 2020US 2020/0136582 A1ThinKom Solutions, Inc.
- Transponder stabilization21 Nov 2019US 2019/0356059 A1Norbit ITS
Most cited
By later US patents
- Wide-band gyrotron traveling-wave amplifier229US 4,533,875 A1985
- Hybrid coupled microstrip amplifier19US 4,415,867 AThe United States of America as represented by the Secretary of the Navy · 1983
- Balanced reflective nonlinear processor using FETs14US 5,146,177 AGeneral Electric Company · 1992
- Double-tuned output circuit for high power devices using coaxial cavity resonators11US 4,184,123 ARCA Corporation · 1980
- Amplifier circuit10US 6,799,027 B1A.B. Dick Holdings Limited · 2004