H03F 3/45928
Using ic blocks as the active amplifying circuit
Official title: {using IC blocks as the active amplifying circuit}
H03F3/45928 (Using ic blocks as the active amplifying circuit) appears on 1,152 US grants and 1,004 published applications in this corpus.
Search patents in H03F- Granted patents
- 1,152
- Published applications
- 1,004
- Assignees
- 482
- Inventors
- 2,139
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 7 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 7 | 0 |
| 1991 | 5 | 0 |
| 1992 | 7 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 7 | 0 |
| 1999 | 15 | 0 |
| 2000 | 14 | 0 |
| 2001 | 32 | 7 |
| 2002 | 34 | 36 |
| 2003 | 43 | 34 |
| 2004 | 45 | 50 |
| 2005 | 40 | 58 |
| 2006 | 57 | 52 |
| 2007 | 47 | 45 |
| 2008 | 51 | 46 |
| 2009 | 44 | 46 |
| 2010 | 49 | 37 |
| 2011 | 48 | 26 |
| 2012 | 34 | 49 |
| 2013 | 39 | 35 |
| 2014 | 45 | 35 |
| 2015 | 32 | 35 |
| 2016 | 34 | 25 |
| 2017 | 47 | 43 |
| 2018 | 43 | 41 |
| 2019 | 52 | 34 |
| 2020 | 48 | 53 |
| 2021 | 47 | 42 |
| 2022 | 39 | 43 |
| 2023 | 30 | 27 |
| 2024 | 25 | 56 |
| 2025 | 21 | 24 |
| 2026 | 21 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods and apparatus to determine a bias current of an amplifier29 Sep 2026US 12,750,024 B2Texas Instruments Incorporated
- Current sense amplifier circuit and trimming method of offset referred to input voltage22 Sep 2026US 12,744,501 B2Richtek Technology Corporation
- Charge injection-related and switching error-related offset reduction by local chopping of switched-capacitor circuits1 Sep 2026US 12,726,163 B1Cirrus Logic, Inc.
- Signal processing25 Aug 2026US 12,719,418 B2Nordic Semiconductor ASA
- Enhanced auto-zero circuit25 Aug 2026US 12,719,428 B2Analog Devices, Inc.
- Systems and methods for low power circuits10 Sep 2026US 2026/0269796 A1National University of Singapore
- Current shunt monitoring system10 Sep 2026US 2026/0269798 A1Faraday Technology Corp.
- Sense amplifier for a physiological sensor and/or other sensors20 Aug 2026US 2026/0240479 A1Inspire Medical Systems, Inc.
- Differential amplifier with rf switch function20 Aug 2026US 2026/0246435 A1Fujikura Ltd.
- Measurement and compensation of amplifier input offset6 Aug 2026US 2026/0230052 A1Microchip Technology Incorporated
Most cited
By later US patents
- Subthreshold CMOS amplifier with offset adaptation214US 4,935,702 ASynaptics Incorporated · 1990
- 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
- Differential DC offset compensation circuit181US 5,471,665 AMotorola, Inc. · 1995
- CMOS amplifier with offset adaptation153US 5,059,920 ASynaptics Incorporated · 1991
- CMOS amplifier with offset adaptation149US 5,068,622 ASynaptics Incorporated · 1991