H03G 9/26
In untuned amplifying stages as well as in frequency-selective amplifying stages
Official title: in untuned amplifying stages as well as in frequency-selective amplifying stages
H03G9/26 (In untuned amplifying stages as well as in frequency-selective amplifying stages) appears on 5 US grants and 1 published applications in this corpus.
Search patents in H03G- Granted patents
- 5
- Published applications
- 1
- Assignees
- 3
- Inventors
- 3
- Latest grant
- 27 Apr 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Systems and methods for processing an audio signal for replay on an audio device27 Apr 2021US 10,991,375 B2Mimi Hearing Technologies GmbH
- Systems and methods for processing an audio signal for replay on an audio device5 Feb 2019US 10,199,047 B1Mimi Hearing Technologies GmbH
- Low input signal bandwidth compressor and amplifier control circuit with a state variable pre-amplifier7 Apr 1998US 5,736,897 ABBE Sound Inc.
- Low input signal bandwidth compressor and amplifier control circuit23 Apr 1996US 5,510,752 ABBE Sound Inc.
- High frequency expander device19 May 1992US 5,115,471 AAphex Systems, Ltd.
Most cited
By later US patents
- Systems and methods for processing an audio signal for replay on an audio device18US 10,199,047 B1Mimi Hearing Technologies GmbH · 2019
- High frequency expander device14US 5,115,471 AAphex Systems, Ltd. · 1992
- Low input signal bandwidth compressor and amplifier control circuit6US 5,510,752 ABBE Sound Inc. · 1996
- Low input signal bandwidth compressor and amplifier control circuit with a state variable pre-amplifier4US 5,736,897 ABBE Sound Inc. · 1998