H03F 3/3069
The emitters of complementary power transistors being connected to the output
Official title: {the emitters of complementary power transistors being connected to the output}
H03F3/3069 (The emitters of complementary power transistors being connected to the output) appears on 384 US grants and 127 published applications in this corpus.
Search patents in H03F- Granted patents
- 384
- Published applications
- 127
- Assignees
- 158
- Inventors
- 479
- Latest grant
- 27 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 8 | 0 |
| 1978 | 12 | 0 |
| 1979 | 6 | 0 |
| 1980 | 9 | 0 |
| 1981 | 7 | 0 |
| 1982 | 12 | 0 |
| 1983 | 6 | 0 |
| 1984 | 11 | 0 |
| 1985 | 12 | 0 |
| 1986 | 6 | 0 |
| 1987 | 8 | 0 |
| 1988 | 8 | 0 |
| 1989 | 8 | 0 |
| 1990 | 8 | 0 |
| 1991 | 7 | 0 |
| 1992 | 9 | 0 |
| 1993 | 8 | 0 |
| 1994 | 12 | 0 |
| 1995 | 6 | 0 |
| 1996 | 9 | 0 |
| 1997 | 10 | 0 |
| 1998 | 11 | 0 |
| 1999 | 12 | 0 |
| 2000 | 13 | 0 |
| 2001 | 11 | 5 |
| 2002 | 15 | 10 |
| 2003 | 18 | 5 |
| 2004 | 6 | 13 |
| 2005 | 9 | 6 |
| 2006 | 5 | 6 |
| 2007 | 7 | 10 |
| 2008 | 9 | 5 |
| 2009 | 8 | 8 |
| 2010 | 9 | 4 |
| 2011 | 4 | 3 |
| 2012 | 8 | 2 |
| 2013 | 2 | 4 |
| 2014 | 4 | 2 |
| 2015 | 3 | 1 |
| 2016 | 4 | 3 |
| 2017 | 1 | 11 |
| 2018 | 9 | 1 |
| 2019 | 5 | 4 |
| 2020 | 4 | 6 |
| 2021 | 8 | 6 |
| 2022 | 5 | 2 |
| 2023 | 4 | 3 |
| 2024 | 1 | 2 |
| 2025 | 1 | 4 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- High-performance audio amplifier27 May 2025US 12,316,287 B1Focal Jmlab
- Methods and devices for adaptive voltage steadying30 Jul 2024US 12,052,029 B2STMicroelectronics S,r.l.
- High frequency, high output impedance amplifier for EMI active filter applications26 Dec 2023US 11,855,600 B2Schaffner EMV AG
- High-speed current-feedback amplifier with distortion cancellation31 Oct 2023US 11,804,805 B2Texas Instruments Incorporated
- Control of base currents for output driver transistors in amplifiers19 Sep 2023US 11,764,740 B2Texas Instruments Incorporated
- Method and devices to increase power added efficiency in power amplifiers20 Aug 2026US 2026/0246427 A1pSemi Corporation
- High-performance audio amplifier15 May 2025US 2025/0158584 A1Focal Jmlab
- Method of use for photoelectric unit and amplification apparatus thereof17 Apr 2025US 2025/0125777 A1
- Methods and apparatus to improve an output of an amplifier27 Mar 2025US 2025/0105800 A1Texas Instruments Incorporated
- Amplifier with pre-driver having cross-coupled transistors27 Mar 2025US 2025/0105809 A1
Most cited
By later US patents
- Audio amplifier power and temperature controller having network detecting and associated methods173US 6,653,899 B2Niles Audio Corporation · 2003
- High-efficiency modulating RF amplifier107US 6,636,112 B1Tropian, Inc. · 2003
- Pin driver amplifier86US 5,357,211 ARaytheon Company · 1994
- Driving circuits for switch mode RF power amplifiers66US 6,198,347 B1Tropian, Inc. · 2001
- Audio amplifier65US 4,797,633 AVideo Sound, Inc. · 1989