H03F 2203/45511
The feedback circuit [fbc] comprising one or more transistor stages
Official title: the feedback circuit [FBC] comprising one or more transistor stages, e.g. cascaded stages of the dif amp, and being coupled between the loading circuit [LC] and the input circuit [IC]
H03F2203/45511 (The feedback circuit [fbc] comprising one or more transistor stages) appears on 108 US grants and 95 published applications in this corpus.
Search patents in H03F- Granted patents
- 108
- Published applications
- 95
- Assignees
- 73
- Inventors
- 186
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 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 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 2 |
| 2003 | 1 | 1 |
| 2004 | 2 | 3 |
| 2005 | 4 | 1 |
| 2006 | 4 | 7 |
| 2007 | 2 | 10 |
| 2008 | 11 | 8 |
| 2009 | 5 | 4 |
| 2010 | 3 | 4 |
| 2011 | 9 | 8 |
| 2012 | 9 | 9 |
| 2013 | 9 | 3 |
| 2014 | 3 | 3 |
| 2015 | 5 | 7 |
| 2016 | 6 | 5 |
| 2017 | 3 | 2 |
| 2018 | 2 | 2 |
| 2019 | 7 | 7 |
| 2020 | 3 | 3 |
| 2021 | 4 | 0 |
| 2022 | 2 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 2 |
| 2025 | 1 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Opto-electronic assemblies21 Jul 2026US 12,689,444 B2Hilight Semiconductor Limited
- Receiver circuit16 Sep 2025US 12,418,286 B2NXP USA, Inc.
- Digitally controlled ground capacitor multiplier10 Jan 2023US 11,552,605 B2King Fahd University of Petroleum and Minerals
- Method and system for a feedback transimpedance amplifier with sub-40khz low-frequency cutoff16 Aug 2022US 11,418,160 B2Cisco Technology, Inc.
- Digitally controlled grounded capacitance multiplier19 Apr 2022US 11,309,854 B1King Fahd University of Petroleum and Minerals
- Feedback amplifier input stage circuit2 Jul 2026US 2026/0189197 A1Harman International Industries, Incorporated
- Voltage generation circuit12 Mar 2026US 2026/0074664 A1Panasonic Automotive Systems Co., Ltd.
- Dual output amplifier for precision resistor calibration system30 Jan 2025US 2025/0038721 A1QUALCOMM Incorporated
- Opto-electronic assemblies5 Sep 2024US 2024/0297719 A1Hilight Semiconductor Limited
- Receiver circuit29 Feb 2024US 2024/0072794 A1NXP USA, Inc.
Most cited
By later US patents
- Offset cancelling amplifier circuit having Miller integrator as offset detector76US 5,798,664 ANEC Corporation · 1998
- Method and system for a feedback transimpedance amplifier with sub-40khz low-frequency cutoff36US 8,471,639 B2Luxtera, Inc. · 2013
- Method and system for a feedback transimpedance amplifier with sub-40khz low-frequency cutoff31US 8,754,711 B2Luxtera, Inc. · 2014
- Switched-capacitor, fully-differential operational amplifier with high switching frequency21US 6,417,728 B1STMicroelectronics S,r.l. · 2002
- Amplifier stage having a switchable gain and reduced distortion18US 5,668,502 AU. S. Philips Corporation · 1997