H04R 1/2823
Vents, i.e. ports
Official title: {Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material}
H04R1/2823 (Vents, i.e. ports) appears on 523 US grants and 536 published applications in this corpus.
Search patents in H04R- Granted patents
- 523
- Published applications
- 536
- Assignees
- 209
- Inventors
- 1,000
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 5 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 2 |
| 2002 | 1 | 1 |
| 2003 | 4 | 1 |
| 2004 | 0 | 5 |
| 2005 | 2 | 9 |
| 2006 | 6 | 4 |
| 2007 | 4 | 3 |
| 2008 | 2 | 5 |
| 2009 | 1 | 11 |
| 2010 | 5 | 4 |
| 2011 | 5 | 5 |
| 2012 | 5 | 7 |
| 2013 | 11 | 16 |
| 2014 | 11 | 11 |
| 2015 | 10 | 16 |
| 2016 | 19 | 27 |
| 2017 | 32 | 42 |
| 2018 | 37 | 35 |
| 2019 | 43 | 44 |
| 2020 | 43 | 35 |
| 2021 | 44 | 49 |
| 2022 | 38 | 42 |
| 2023 | 35 | 42 |
| 2024 | 54 | 60 |
| 2025 | 41 | 25 |
| 2026 | 23 | 35 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Acoustic output devices8 Sep 2026US 12,732,744 B2Shenzhen Shokz Co., Ltd.
- Projector having speaker unit with air circulation path25 Aug 2026US 12,717,221 B2Seiko Epson Corporation
- Earphones11 Aug 2026US 12,707,182 B2Shenzhen Shokz Co., Ltd.
- Loudspeaker cabinet incorporating curved vents14 Jul 2026US 12,684,285 B1Robotham Creative, Inc.
- Open earphones16 Jun 2026US 12,659,651 B2Shenzhen Shokz Co., Ltd.
- Acoustic output devices24 Sep 2026US 2026/0292391 A1Shenzhen Shokz Co., Ltd.
- Acoustic output devices24 Sep 2026US 2026/0292392 A1Shenzhen Shokz Co., Ltd.
- Open earphones24 Sep 2026US 2026/0292393 A1Shenzhen Shokz Co., Ltd.
- Speaker assemblies and earphones13 Aug 2026US 2026/0238919 A1Shenzhen Shokz Co., Ltd.
- Audio speaker system30 Jul 2026US 2026/0222718 A1Merry Electronics North America Inc., Doing Business AS Sonavox Mena
Most cited
By later US patents
- Earphone296US 5,949,896 ASony Corporation · 1999
- Tunable earphone244US 8,831,266 B1Cooler Master Technology Inc. · 2014
- Open-air type earphone201US 4,742,887 ASony Corporation · 1988
- Weather resistant porting180US 7,039,212 B2Britannia Investment Corporation · 2006
- Wireless pairing of earbuds and case96US 9,769,558 B2Apple Inc. · 2017