H03F 2203/45114
The differential amplifier contains another differential amplifier in its feedback circuit
Official title: the differential amplifier contains another differential amplifier in its feedback circuit
H03F2203/45114 (The differential amplifier contains another differential amplifier in its feedback circuit) appears on 40 US grants and 45 published applications in this corpus.
Search patents in H03F- Granted patents
- 40
- Published applications
- 45
- Assignees
- 37
- Inventors
- 79
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 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 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 2 | 2 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 3 |
| 2016 | 4 | 4 |
| 2017 | 4 | 2 |
| 2018 | 1 | 5 |
| 2019 | 4 | 5 |
| 2020 | 7 | 5 |
| 2021 | 4 | 3 |
| 2022 | 1 | 4 |
| 2023 | 1 | 2 |
| 2024 | 2 | 2 |
| 2025 | 2 | 1 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Transceiver circuit and associated interference mitigation method17 Mar 2026US 12,580,528 B2Texas Instruments Incorporated
- Complementary envelope detector28 Jan 2025US 12,212,286 B2Qorvo US, Inc.
- Feedback amplifier input stage circuit2 Jul 2026US 2026/0189197 A1Harman International Industries, Incorporated
- Amplifier Arrangement for Ion Optical Device25 Jun 2026US 2026/0179895 A1Thermo Fisher Scientific (Bremen) GmbH
- Amplifier and oscilloscope30 Apr 2026US 2026/0121601 A1R Igol Technologies Co., Ltd.
- Transceiver circuit and associated interference mitigation method16 Apr 2026US 2026/0106577 A1Texas Instruments Incorporated
- Variable gain differentiator for analog signal differentiation20 Mar 2025US 2025/0096760 A1King Fahd University of Petroleum and Minerals
Most cited
By later US patents
- Balanced output analog differential amplifier circuit13US 4,742,308 AAmerican Telephone and Telegraph Company, AT&T Bell Laboratories · 1988
- Amplifier with common-mode feedback circuit9US 7,564,306 B2Realtek Semiconductor Corp. · 2009
- Instrumentation amplifier and signal amplification method7US 9,294,048 B2Imec Vzw · 2016
- Transmipedance amplifier circuit, related integrated circuit, receiver circuit and method of operating a transimpedance amplifier circuit6US 10,187,026 B2STMicroelectronics S,r.l. · 2019
- Amplifier circuit6US 7,265,624 B2Sony Corporation · 2007