H03F 1/303
Using a switching device
Official title: {using a switching device (H03F1/305, H03F3/005, H03F3/38 take precedence)}
H03F1/303 (Using a switching device) appears on 443 US grants and 232 published applications in this corpus.
Search patents in H03F- Granted patents
- 443
- Published applications
- 232
- Assignees
- 228
- Inventors
- 763
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 5 | 0 |
| 1981 | 7 | 0 |
| 1982 | 6 | 0 |
| 1983 | 5 | 0 |
| 1984 | 6 | 0 |
| 1985 | 8 | 0 |
| 1986 | 13 | 0 |
| 1987 | 8 | 0 |
| 1988 | 8 | 0 |
| 1989 | 14 | 0 |
| 1990 | 13 | 0 |
| 1991 | 17 | 0 |
| 1992 | 8 | 0 |
| 1993 | 7 | 0 |
| 1994 | 4 | 0 |
| 1995 | 9 | 0 |
| 1996 | 10 | 0 |
| 1997 | 10 | 0 |
| 1998 | 14 | 0 |
| 1999 | 14 | 0 |
| 2000 | 16 | 0 |
| 2001 | 7 | 1 |
| 2002 | 7 | 5 |
| 2003 | 10 | 7 |
| 2004 | 5 | 12 |
| 2005 | 6 | 1 |
| 2006 | 4 | 2 |
| 2007 | 3 | 6 |
| 2008 | 3 | 4 |
| 2009 | 8 | 6 |
| 2010 | 2 | 8 |
| 2011 | 3 | 7 |
| 2012 | 8 | 6 |
| 2013 | 6 | 6 |
| 2014 | 10 | 8 |
| 2015 | 7 | 8 |
| 2016 | 9 | 15 |
| 2017 | 21 | 17 |
| 2018 | 17 | 17 |
| 2019 | 19 | 6 |
| 2020 | 11 | 21 |
| 2021 | 12 | 9 |
| 2022 | 6 | 14 |
| 2023 | 12 | 17 |
| 2024 | 8 | 10 |
| 2025 | 11 | 8 |
| 2026 | 10 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Physical quantity outputting circuit9 Jun 2026US 12,652,011 B2Fuji Electric Co., Ltd.
- Compensation of thermally induced voltage errors26 May 2026US 12,640,688 B2Texas Instruments Incorporated
- System and method of protecting a low voltage capacitor of an error amplifier operating in a higher voltage domain28 Apr 2026US 12,615,019 B2NXP B. V.
- Sense amplifier for a physiological sensor and/or other sensors14 Apr 2026US 12,599,329 B2Inspire Medical Systems, Inc.
- Distortion compensation for a switch in an amplifier circuit7 Apr 2026US 12,597,889 B2NXP B. V.
- Semiconductor device1 Oct 2026US 2026/0303033 A1Mitsumi Electric Co., Ltd.
- Digital offset rejection mechanism17 Sep 2026US 2026/0280493 A1Allegro MicroSystems, LLC
- Sense amplifier for a physiological sensor and/or other sensors20 Aug 2026US 2026/0240479 A1Inspire Medical Systems, Inc.
- Temperature-compensated directivity control in power amplifier modules30 Jul 2026US 2026/0221946 A1pSemi Corporation
- Transconductance gain calibration circuit16 Jul 2026US 2026/0205082 A1Realtek Semiconductor Corp.
Most cited
By later US patents
- Electronic device having sound output module1,021US 7,046,082 B2Rohm Co., Ltd. · 2006
- Method and apparatus for operating a radio-frequency power amplifier as a variable-class linear amplifier338US 6,043,707 AMotorola, Inc. · 2000
- 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
- Correlated sampling amplifier162US 4,717,830 ASanta Barbara Research Center · 1988