H03F 99/00
Subject matter not provided for in other groups of this subclass
H03F99/00 (Subject matter not provided for in other groups of this subclass) appears on 31 US grants and 39 published applications in this corpus.
Search patents in H03F- Granted patents
- 31
- Published applications
- 39
- Assignees
- 20
- Inventors
- 51
- Latest grant
- 24 Oct 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 3 |
| 2006 | 0 | 2 |
| 2007 | 0 | 3 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 1 | 1 |
| 2011 | 1 | 2 |
| 2012 | 1 | 2 |
| 2013 | 2 | 7 |
| 2014 | 4 | 7 |
| 2015 | 5 | 1 |
| 2016 | 5 | 6 |
| 2017 | 0 | 0 |
| 2018 | 2 | 0 |
| 2019 | 4 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Variable voltage phantom power supply assembly and a method for customizing performance characteristics of a microphone24 Oct 2023US 11,800,282 B1Copperline Ranch
- Power control based on packet type22 Aug 2023US 11,733,768 B2Sonos, Inc.
- Power control based on packet type26 Oct 2021US 11,157,069 B2Sonos, Inc.
- Power decrease based on packet type6 Aug 2019US 10,372,200 B2Sonos, Inc.
- Power decrease based on packet type28 May 2019US 10,303,240 B2Sonos, Inc.
- Power Control Based on Packet Type7 Dec 2023US 2023/0393647 A1Sonos, Inc.
- Power Control Based on Packet Type3 Feb 2022US 2022/0035595 A1Sonos, Inc.
- Power Control Based on Packet Type21 Nov 2019US 2019/0354165 A1Sonos, Inc.
- Power Decrease and Increase Based on Packet Type15 Dec 2016US 2016/0363988 A1Sonos, Inc.
- Power Increase Based on Packet Type and Synchronous Playback15 Dec 2016US 2016/0363989 A1Sonos, Inc.
Most cited
By later US patents
- Method and system for controlling amplifiers65US 8,843,224 B2Sonos, Inc. · 2014
- Method and system for controlling amplifiers41US 8,024,055 B1Sonos, Inc. · 2011
- Audio visual enhancement apparatus22US 8,520,370 B2Screendoor Studio, Inc. · 2013
- Amplification systems and methods with noise reductions22US 8,558,609 B2On-Bright Electronics (Shanghai) Co., Ltd. · 2013
- Amplification systems and methods with noise reductions14US 9,065,401 B2On-Bright Electronics (Shanghai) Co., Ltd. · 2015