H03F 3/45982
By using a feedforward circuit
Official title: {by using a feedforward circuit}
H03F3/45982 (By using a feedforward circuit) appears on 83 US grants and 62 published applications in this corpus.
Search patents in H03F- Granted patents
- 83
- Published applications
- 62
- Assignees
- 61
- Inventors
- 142
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 4 | 4 |
| 2003 | 3 | 3 |
| 2004 | 5 | 7 |
| 2005 | 6 | 5 |
| 2006 | 2 | 3 |
| 2007 | 4 | 2 |
| 2008 | 4 | 3 |
| 2009 | 2 | 0 |
| 2010 | 1 | 1 |
| 2011 | 2 | 2 |
| 2012 | 3 | 4 |
| 2013 | 5 | 5 |
| 2014 | 4 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 3 |
| 2017 | 5 | 2 |
| 2018 | 3 | 2 |
| 2019 | 3 | 1 |
| 2020 | 1 | 4 |
| 2021 | 5 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 2 | 2 |
| 2025 | 2 | 1 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Semiconductor device16 Dec 2025US 12,500,560 B2Samsung Electro-Mechanics Co., Ltd.
- Clamping circuit and offset OTA circuit thereof9 Sep 2025US 12,413,225 B2Richtek Technology Corporation
- Sampling and holding electrical signals with rail-to-rail equivalent output swing17 Dec 2024US 12,170,509 B2Cisco Technology, Inc.
- Amplifier circuitry and current sensor having the same7 May 2024US 11,979,120 B2Alps Alpine Co., Ltd.
- Voltage gain amplifier architecture for automotive radar23 May 2023US 11,658,624 B2STMicroelectronics International N. V.
- Feedback amplifier input stage circuit2 Jul 2026US 2026/0189197 A1Harman International Industries, Incorporated
- Ripple Reduction Using Chopper Amplifiers26 Feb 2026US 2026/0058622 A1
- Operational Amplifier, Chip, and Electronic Device15 Jan 2026US 2026/0019051 A1Huawei Technologies Co., Ltd.
- Clamping circuit and offset ota circuit thereof21 Aug 2025US 2025/0266821 A1Richtek Technology Corporation
- Sampling and holding electrical signals with rail-to-rail equivalent output swing5 Sep 2024US 2024/0297626 A1Cisco Technology, Inc.
Most cited
By later US patents
- Chopper chopper-stabilized operational amplifiers and methods49US 6,734,723 B2Maxim Integrated Products, Inc. · 2004
- Receiver, transceiver circuit, signal transmission method, and signal transmission system41US 6,826,390 B1Fujitsu Limited · 2004
- Low-voltage CMOS comparator38US 5,589,785 AAnalog Devices, Inc. · 1996
- Sample and hold circuit and method with common mode differential signal feedback for converting single-ended signals to differential signals37US 5,963,156 ANational Semiconductor Corporation · 1999
- Low-voltage CMOS comparator with offset cancellation32US 5,600,275 AAnalog Devices, Inc. · 1997