H04R 9/042
By pressurised air
Official title: {by pressurised air}
H04R9/042 (By pressurised air) appears on 8 US grants and 5 published applications in this corpus.
Search patents in H04R- Granted patents
- 8
- Published applications
- 5
- Assignees
- 6
- Inventors
- 14
- Latest grant
- 22 Mar 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 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 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 3 | 2 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Vented loudspeaker22 Mar 2022US 11,284,186 B2JL Audio, Inc.
- Sound producing device8 Dec 2020US 10,863,280 B2xMEMS Labs, Inc.
- Sound producing device22 Sep 2020US 10,783,866 B1xMEMS Labs, Inc.
- Sound producing device15 Sep 2020US 10,779,088 B1xMEMS Labs, Inc.
- Speaker apparatus3 May 2011US 7,936,896 B2Pioneer Corporation
- Lightweight speaker diaphragm11 Feb 2021US 2021/0044902 A1
- Sound Producing Device10 Sep 2020US 2020/0288248 A1xMEMS Labs, Inc.
- Vented loudspeaker27 Feb 2020US 2020/0068291 A1JL Audio, Inc.
- Speaker apparatus24 May 2007US 2007/0116322 A1Pioneer Corporation
- Speaker apparatus30 Jun 2005US 2005/0141746 A1Pioneer Corporation
Most cited
By later US patents
- Speaker apparatus10US 7,515,728 B2Pioneer Corporation · 2009
- Sound producing device9US 10,779,088 B1xMEMS Labs, Inc. · 2020
- Acoustic device with floating vibrating means5US 4,259,550 A1981
- Sound producing device3US 10,783,866 B1xMEMS Labs, Inc. · 2020
- Speaker apparatus2US 7,936,896 B2Pioneer Corporation · 2011