H03F 9/00
Magnetic amplifiers
H03F9/00 (Magnetic amplifiers) appears on 27 US grants and 14 published applications in this corpus.
Search patents in H03F- Granted patents
- 27
- Published applications
- 14
- Assignees
- 25
- Inventors
- 42
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 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 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 2 | 0 |
| 2013 | 1 | 2 |
| 2014 | 0 | 1 |
| 2015 | 2 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 3 |
| 2020 | 2 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pulse-shaping networks with coupled magnetics10 Mar 2026US 12,573,993 B2Murata Manufacturing Co., Ltd.
- Gain-controllable magnetoresistive analog amplifier3 Sep 2024US 12,081,176 B2MultiDimension Technology Co., Ltd.
- Magnetic operational amplifier29 Dec 2020US 10,879,860 B2Centre National de la Recherche Scientifique (CNRS)
- Gain-dependent impedance matching and linearity30 Jun 2020US 10,700,655 B2QUALCOMM Incorporated
- Signal amplifying system in a hall detecting and amplifying system1 Oct 2019US 10,432,159 B2Chengdu Monolithic Power Systems Co., Ltd.
- Pulse-Shaping Networks with Coupled Magnetics25 Apr 2024US 2024/0136991 A1Murata Manufacturing Co., Ltd.
- Gain-controllable magnetoresistive analog amplifier16 Mar 2023US 2023/0084058 A1MultiDimension Technology Co., Ltd.
- Gain-Dependent Impedance Matching and Linearity3 Oct 2019US 2019/0305740 A1QUALCOMM Incorporated
- Magnetic operational amplifier13 Jun 2019US 2019/0181818 A1Centre National de la Recherche Scientifique (CNRS)
- Gain-Dependent Impedance Matching and Linearity23 May 2019US 2019/0158048 A1QUALCOMM Incorporated
Most cited
By later US patents
- Vectorial signal combiner for generating an amplitude modulated carrier by adding two phase modulated constant envelope carriers74US 5,345,189 AHewlett-Packard Company · 1994
- Switch mode converters43US 4,353,113 AElectrotech Instruments Limited · 1982
- Ringing choke converter18US 4,931,918 AYokogawa Electric Corporation · 1990
- Magnetic amplifier16US 4,675,615 A1987
- P-Oxybenzoyl copolyesters comprising thiodiphenol components and having improved flexibility and solubility in organic solvents9US 4,219,629 ADart Industries Inc. · 1980