H03F 3/45493
Measuring at the loading circuit of the differential amplifier
Official title: {Measuring at the loading circuit of the differential amplifier}
H03F3/45493 (Measuring at the loading circuit of the differential amplifier) appears on 122 US grants and 72 published applications in this corpus.
Search patents in H03F- Granted patents
- 122
- Published applications
- 72
- Assignees
- 72
- Inventors
- 203
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 1 |
| 2002 | 9 | 3 |
| 2003 | 5 | 5 |
| 2004 | 4 | 3 |
| 2005 | 4 | 4 |
| 2006 | 3 | 1 |
| 2007 | 1 | 1 |
| 2008 | 2 | 3 |
| 2009 | 3 | 4 |
| 2010 | 4 | 5 |
| 2011 | 2 | 0 |
| 2012 | 4 | 3 |
| 2013 | 1 | 1 |
| 2014 | 4 | 4 |
| 2015 | 1 | 2 |
| 2016 | 5 | 2 |
| 2017 | 5 | 3 |
| 2018 | 1 | 2 |
| 2019 | 3 | 3 |
| 2020 | 3 | 6 |
| 2021 | 5 | 2 |
| 2022 | 0 | 2 |
| 2023 | 2 | 5 |
| 2024 | 2 | 3 |
| 2025 | 5 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H03F 3/45511Controlling the loading circuit of the differential amplifier54
- H03F 3/45502Controlling the common emitter circuit of the differential amplifier40
- H03F 3/45497Controlling the input circuit of the differential amplifier17
- H03F 3/45506Controlling the active amplifying circuit of the differential amplifier15
Recent patents
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- Methods and devices including amplifier circuitry1 Jan 2026US 2026/0005654 A1Intel Corporation
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Most cited
By later US patents
- Differential DC offset compensation circuit181US 5,471,665 AMotorola, Inc. · 1995
- Linear variable gain amplifiers137US 6,563,382 B1International Business Machines Corporation · 2003
- Apparatus with distortion cancelling feedback signal65US 5,613,233 ARockwell International Corporation · 1997
- Low-voltage transconductance amplifier/filters65US 6,704,560 B1Skyworks Solutions, Inc. · 2004
- LVDS driver in bipolar and MOS technology63US 6,791,377 B2Alcatel · 2004