H03F 3/45381
Long tailed pairs
Official title: {Long tailed pairs (H03F3/45408, H03F3/45434 take precedence)}
H03F3/45381 (Long tailed pairs) appears on 91 US grants and 53 published applications in this corpus.
Search patents in H03F- Granted patents
- 91
- Published applications
- 53
- Assignees
- 56
- Inventors
- 130
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 6 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 2 |
| 2003 | 6 | 4 |
| 2004 | 3 | 4 |
| 2005 | 2 | 5 |
| 2006 | 4 | 1 |
| 2007 | 3 | 0 |
| 2008 | 2 | 2 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 3 |
| 2014 | 2 | 0 |
| 2015 | 1 | 1 |
| 2016 | 5 | 7 |
| 2017 | 1 | 2 |
| 2018 | 2 | 5 |
| 2019 | 6 | 3 |
| 2020 | 4 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 4 |
| 2024 | 1 | 4 |
| 2025 | 3 | 1 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Variable gain optical modulator with open collector driver amplifier and method of operation18 Aug 2026US 12,712,508 B2MACOM Technology Solutions Holdings, Inc.
- Variable gain optical modulator with open collector driver amplifier and method of operation3 Mar 2026US 12,567,847 B2MACOM Technology Solutions Holdings, Inc.
- Amplifier and method for controlling common mode voltage of the same27 Jan 2026US 12,537,490 B2Realtek Semiconductor Corp.
- CMOS compatible near-infrared sensor system25 Nov 2025US 12,484,321 B2ams International AG
- Low power comparator18 Feb 2025US 12,231,130 B2Renesas Design (UK) Limited
- Electronic circuit and method for suppressing offset changes in a buffer2 Jul 2026US 2026/0189191 A1
- Nested jfet gain stage26 Feb 2026US 2026/0058620 A1Weed Instrument Company, Inc.
- High precision jfet amplifier19 Feb 2026US 2026/0051865 A1Weed Instrument Company, Inc.
- Systems and methods for high accuracy open loop transconductance amplifier having gain set by output load25 Sep 2025US 2025/0300616 A1NXP USA, Inc.
- Amplifier with input and output common-mode control in a single amplification stage10 Oct 2024US 2024/0339977 A1Texas Instruments Incorporated
Most cited
By later US patents
- Differential to single-ended converter with large output swing34US 6,606,489 B2RF Micro Devices, Inc. · 2003
- Audio power amplifier29US 4,241,313 ANippon Gakki Seizo Kabushiki Kaisha · 1980
- Gallium arsenide differential amplifier with closed loop bias stabilization29US 4,616,189 ATriQuint Semiconductor, Inc. · 1986
- Amplifying circuit for an integrated circuit with low-noise characteristic28US 5,648,743 AFujitsu Limited · 1997
- Differential amplifier with common-mode bias feedback27US 4,904,953 ATriQuint Semiconductor, Inc. · 1990