H03F 3/45632
In differential amplifiers with fet transistors as the active amplifying circuit
Official title: {in differential amplifiers with FET transistors as the active amplifying circuit (H03F3/4578 takes precedence)}
H03F3/45632 (In differential amplifiers with fet transistors as the active amplifying circuit) appears on 1,522 US grants and 1,234 published applications in this corpus.
Search patents in H03F- Granted patents
- 1,522
- Published applications
- 1,234
- Assignees
- 497
- Inventors
- 2,521
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 6 | 0 |
| 1984 | 5 | 0 |
| 1985 | 7 | 0 |
| 1986 | 7 | 0 |
| 1987 | 8 | 0 |
| 1988 | 7 | 0 |
| 1989 | 8 | 0 |
| 1990 | 11 | 0 |
| 1991 | 14 | 0 |
| 1992 | 13 | 0 |
| 1993 | 12 | 0 |
| 1994 | 17 | 0 |
| 1995 | 24 | 0 |
| 1996 | 11 | 0 |
| 1997 | 14 | 0 |
| 1998 | 20 | 0 |
| 1999 | 20 | 0 |
| 2000 | 28 | 0 |
| 2001 | 23 | 8 |
| 2002 | 45 | 44 |
| 2003 | 70 | 58 |
| 2004 | 51 | 39 |
| 2005 | 44 | 82 |
| 2006 | 68 | 52 |
| 2007 | 69 | 56 |
| 2008 | 63 | 68 |
| 2009 | 57 | 58 |
| 2010 | 55 | 34 |
| 2011 | 56 | 35 |
| 2012 | 39 | 45 |
| 2013 | 47 | 44 |
| 2014 | 43 | 38 |
| 2015 | 27 | 32 |
| 2016 | 58 | 48 |
| 2017 | 47 | 33 |
| 2018 | 42 | 47 |
| 2019 | 60 | 51 |
| 2020 | 62 | 68 |
| 2021 | 50 | 53 |
| 2022 | 57 | 45 |
| 2023 | 49 | 58 |
| 2024 | 26 | 55 |
| 2025 | 37 | 45 |
| 2026 | 29 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for performing common mode voltage re-biasing in analog front-end circuit of receiver, associated common mode voltage re-biasing circuit, associated receiver and associated integrated circuit29 Sep 2026US 12,750,025 B2Realtek Semiconductor Corp.
- Source amplifier and source driver including source amplifier22 Sep 2026US 12,743,986 B2Korea Advanced Institute of Science and Technology
- Voltage and current sense circuits for measuring a load connected to a power amplifier25 Aug 2026US 12,716,920 B2Goodix Technology (Hk) Company Limited
- Voltage regulator with skewed current mirror25 Aug 2026US 12,719,432 B2QUALCOMM Incorporated
- Offset voltage compensation circuit and isolation amplifier device including the same28 Jul 2026US 12,693,162 B2Lite-On Singapore Pte. Ltd.
- Differential charge pump1 Oct 2026US 2026/0303103 A1International Business Machines Corporation
- Systems and methods for low power circuits10 Sep 2026US 2026/0269796 A1National University of Singapore
- Analog front end with compensated open loop stage20 Aug 2026US 2026/0246430 A1STMicroelectronics International N. V.
- Operational transconductance amplifier (ota) with separate cascode paths for reconfigurable input pairs23 Jul 2026US 2026/0213718 A1QUALCOMM Incorporated
- Current-controlled oscillator-based ripple reduction loop for bandgap reference16 Jul 2026US 2026/0205061 A1Korea Advanced Institute of Science and Technology
Most cited
By later US patents
- Subthreshold CMOS amplifier with offset adaptation214US 4,935,702 ASynaptics Incorporated · 1990
- Operational amplifier apparatus211US 5,777,515 AMatsushita Electric Industrial Co., Ltd. · 1998
- High-order multipath operational amplifier with dynamic offset reduction, controlled saturation current limiting, and current feedback for enhanced conditional stability183US 6,002,299 ACirrus Logic, Inc. · 1999
- CMOS amplifier with offset adaptation153US 5,059,920 ASynaptics Incorporated · 1991
- CMOS amplifier with offset adaptation149US 5,068,622 ASynaptics Incorporated · 1991