H03F 3/45291
Folded cascode stages
Official title: {Folded cascode stages}
H03F3/45291 (Folded cascode stages) appears on 36 US grants and 21 published applications in this corpus.
Search patents in H03F- Granted patents
- 36
- Published applications
- 21
- Assignees
- 25
- Inventors
- 55
- Latest grant
- 2 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 1 |
| 2003 | 3 | 2 |
| 2004 | 2 | 0 |
| 2005 | 1 | 0 |
| 2006 | 2 | 2 |
| 2007 | 2 | 4 |
| 2008 | 3 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 2 | 2 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 3 |
| 2024 | 1 | 3 |
| 2025 | 3 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
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- Amplifier having transconductance attenuation21 Mar 2024US 2024/0094754 A1Texas Instruments Incorporated
- Precision operational amplifier with a floating input stage21 Mar 2024US 2024/0097631 A1Semiconductor Components Industries, LLC
- Amplifier output stage circuitry23 Mar 2023US 2023/0092097 A1Texas Instruments Incorporated
- Differential amplifier compensation16 Feb 2023US 2023/0046993 A1Texas Instruments Incorporated
Most cited
By later US patents
- Circuit and method for compensating for offset voltage52US 7,227,389 B2Samsung Electro-Mechanics Co., Ltd. · 2007
- Balanced differential amplifier having common mode feedback with kick-start47US 6,265,941 B1Agere Systems Guardian Corp. · 2001
- Buffer circuit for op amp output stage31US 6,714,076 B1Analog Devices, Inc. · 2004
- Self-biased, phantom-powered and feedback-stabilized amplifier for electret microphone29US 6,160,450 ANational Semiconductor Corporation · 2000
- Tunable operational transcondunctance amplifier having high linearity27US 5,465,072 ALinear Technology Corporation · 1995