H03F 3/45
Differential amplifiers
Official title: Differential amplifiers (differential sense amplifiers G11C7/062)
H03F3/45 (Differential amplifiers) appears on 11,349 US grants and 9,967 published applications in this corpus.
Search patents in H03F- Granted patents
- 11,349
- Published applications
- 9,967
- Assignees
- 2,125
- Inventors
- 14,439
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 30 | 0 |
| 1977 | 30 | 0 |
| 1978 | 26 | 0 |
| 1979 | 27 | 0 |
| 1980 | 34 | 0 |
| 1981 | 47 | 0 |
| 1982 | 35 | 0 |
| 1983 | 35 | 0 |
| 1984 | 37 | 0 |
| 1985 | 60 | 0 |
| 1986 | 56 | 0 |
| 1987 | 50 | 0 |
| 1988 | 56 | 0 |
| 1989 | 50 | 0 |
| 1990 | 48 | 0 |
| 1991 | 55 | 0 |
| 1992 | 72 | 0 |
| 1993 | 53 | 0 |
| 1994 | 79 | 0 |
| 1995 | 106 | 0 |
| 1996 | 94 | 0 |
| 1997 | 82 | 0 |
| 1998 | 106 | 0 |
| 1999 | 127 | 0 |
| 2000 | 134 | 0 |
| 2001 | 185 | 50 |
| 2002 | 209 | 227 |
| 2003 | 276 | 257 |
| 2004 | 272 | 233 |
| 2005 | 241 | 393 |
| 2006 | 345 | 404 |
| 2007 | 377 | 422 |
| 2008 | 396 | 425 |
| 2009 | 404 | 416 |
| 2010 | 457 | 371 |
| 2011 | 375 | 319 |
| 2012 | 353 | 306 |
| 2013 | 368 | 380 |
| 2014 | 384 | 378 |
| 2015 | 345 | 360 |
| 2016 | 421 | 341 |
| 2017 | 416 | 360 |
| 2018 | 390 | 413 |
| 2019 | 531 | 529 |
| 2020 | 554 | 592 |
| 2021 | 497 | 511 |
| 2022 | 506 | 526 |
| 2023 | 431 | 503 |
| 2024 | 417 | 492 |
| 2025 | 377 | 411 |
| 2026 | 293 | 348 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fast settling voltage regulator circuitry with pole frequency tracking6 Oct 2026US 12,754,580 B2Advanced Micro Devices, Inc.
- Data storage device with BiCMOS impedance-matched amplifier with transducer-bias6 Oct 2026US 12,755,754 B1Western Digital Technologies, Inc.
- Tunable transconductor6 Oct 2026US 12,756,369 B2Texas Instruments Incorporated
- Two-terminal synthesis resistor6 Oct 2026US 12,756,392 B2Analog Devices International Unlimited Company
- Digital-to-analog converter, chip, and electronic device6 Oct 2026US 12,756,402 B2Sg Micro Corp
- Method and Apparatus for Computing Operations on a Non-volatile Memory Device8 Oct 2026US 2026/0311756 A1Singapore University of Technology and Design
- Power amplifier circuit and power amplifier device8 Oct 2026US 2026/0312552 A1Murata Manufacturing Co., Ltd.
- Amplifier circuit and charge sensitive preamplifier8 Oct 2026US 2026/0312553 A1
- Self-protected high-transconductance input stage for comparators and amplifiers8 Oct 2026US 2026/0312554 A1Analog Devices International Unlimited Company
- A Redundancy System and Switchable TIA8 Oct 2026US 2026/0312555 A1
Most cited
By later US patents
- Wireless medical diagnosis and monitoring equipment1,499US 5,957,854 A1999
- Wireless medical diagnosis and monitoring equipment692US 5,862,803 A1999
- Wireless medical diagnosis and monitoring equipment582US 7,215,991 B2Motorola, Inc. · 2007
- Wireless medical diagnosis and monitoring equipment485US 6,289,238 B1Motorola, Inc. · 2001
- Wireless medical diagnosis and monitoring equipment461US 6,577,893 B1Motorola, Inc. · 2003