H03F 3/387
With semiconductor devices only
Official title: with semiconductor devices only
H03F3/387 (With semiconductor devices only) appears on 345 US grants and 313 published applications in this corpus.
Search patents in H03F- Granted patents
- 345
- Published applications
- 313
- Assignees
- 196
- Inventors
- 604
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 1 |
| 2002 | 3 | 2 |
| 2003 | 1 | 0 |
| 2004 | 2 | 3 |
| 2005 | 2 | 4 |
| 2006 | 2 | 5 |
| 2007 | 10 | 12 |
| 2008 | 9 | 11 |
| 2009 | 15 | 14 |
| 2010 | 9 | 7 |
| 2011 | 9 | 5 |
| 2012 | 9 | 4 |
| 2013 | 4 | 7 |
| 2014 | 9 | 14 |
| 2015 | 9 | 13 |
| 2016 | 16 | 23 |
| 2017 | 24 | 19 |
| 2018 | 26 | 21 |
| 2019 | 18 | 20 |
| 2020 | 29 | 27 |
| 2021 | 19 | 22 |
| 2022 | 18 | 24 |
| 2023 | 14 | 18 |
| 2024 | 21 | 13 |
| 2025 | 15 | 13 |
| 2026 | 12 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Modulator8 Sep 2026US 12,732,144 B2Denso Corporation
- Amplifier circuit25 Aug 2026US 12,719,429 B2Denso Corporation
- Amplifier circuit18 Aug 2026US 12,712,496 B2Sony Semiconductor Solutions Corporation
- Instrumentation amplifier with base current compensator for improved performance11 Aug 2026US 12,706,573 B2Texas Instruments Incorporated
- Chopper circuit for multipath chopper amplifier and corresponding method of chopping14 Jul 2026US 12,683,565 B2NXP B. V.
- Circuit and Method for Operating a Circuit1 Oct 2026US 2026/0303035 A1Delft Semiconductor B.V.
- Differential Amplifier Circuit with Distributed Chopper Circuitry Having a Cyclic Rest Phase27 Aug 2026US 2026/0254426 A1Apple Inc.
- Novel Chopper-Stabilized Correlated Double Sampling Multi-path Amplifier Circuit and Method Based on Miller Capacitor Reuse16 Jul 2026US 2026/0205074 A1Xiamen University
- Chopper circuit for multipath chopper amplifier and corresponding method of chopping16 Jul 2026US 2026/0205075 A1NXP B. V.
- Electronic circuit and method for suppressing offset changes in a buffer2 Jul 2026US 2026/0189191 A1
Most cited
By later US patents
- Transmitter using input modulation for envelope restoration scheme for linear high-efficiency power amplification120US 6,380,802 B1Ericsson Inc. · 2002
- Notch filter for ripple reduction in chopper stabilized amplifiers120US 7,292,095 B2Texas Instruments Incorporated · 2007
- Analog to digital converter with autoranging offset86US 5,329,281 AHewlett-Packard Company · 1994
- Isolation amplifier including precision voltage-to-duty-cycle converter and low ripple, high bandwidth charge balance demodulator81US 4,843,339 ABurr-Brown Corporation · 1989
- Chopper-stabilized instrumentation amplifier for impedance measurement81US 7,391,257 B1Medtronic, Inc. · 2008