B29L 2031/3418
Loud speakers
Official title: {Loud speakers}
B29L2031/3418 (Loud speakers) appears on 67 US grants and 57 published applications in this corpus.
Search patents in B29L- Granted patents
- 67
- Published applications
- 57
- Assignees
- 51
- Inventors
- 143
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 3 |
| 2002 | 1 | 4 |
| 2003 | 4 | 0 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 1 | 2 |
| 2008 | 1 | 2 |
| 2009 | 0 | 0 |
| 2010 | 2 | 1 |
| 2011 | 2 | 1 |
| 2012 | 1 | 4 |
| 2013 | 2 | 0 |
| 2014 | 2 | 1 |
| 2015 | 1 | 2 |
| 2016 | 0 | 1 |
| 2017 | 4 | 2 |
| 2018 | 2 | 8 |
| 2019 | 3 | 3 |
| 2020 | 6 | 10 |
| 2021 | 3 | 3 |
| 2022 | 4 | 1 |
| 2023 | 3 | 2 |
| 2024 | 3 | 3 |
| 2025 | 1 | 2 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Transducers and manufacturing methods thereof23 Jun 2026US 12,666,205 B2Tymphany Hk Limited
- Loudspeaker and method of manufacture26 May 2026US 12,641,372 B2Pss Belgium NV
- Molding method of vehicle speaker grill14 Apr 2026US 12,600,066 B2Seoyon E-Hwa Co., Ltd.
- Electronic component-equipped resin casing and method for producing same22 Jul 2025US 12,368,987 B2Nissha Co., Ltd.
- Loudspeaker membrane with spray-coated elastomer layer23 Jul 2024US 12,042,960 B2SSI New Material (Zhenjiang) Co., Ltd.
- Expandable Foam and Manufacturing Method thereof, and Speaker12 Mar 2026US 2026/0075357 A1Aac Acoustic Technologies (Shenzhen) Co., Ltd.
- Fabric with Digitally Controlled Characteristics1 Jan 2026US 2026/0001270 A1Apple Inc.
- Improved loudspeaker and method of manufacture10 Apr 2025US 2025/0119690 A1Pss Belgium NV
- Molding method of vehicle speaker grill20 Feb 2025US 2025/0058505 A1Seoyon E-Hwa Co., Ltd.
- Diaphragm assembly, method of manufacturing diaphragm assembly and injection mold4 Jul 2024US 2024/0217148 A1Tymphany Hk Limited
Most cited
By later US patents
- Audio port configuration for compact electronic devices130US 8,804,993 B2Apple Inc. · 2014
- Method of making a speaker cone and surround assembly20US 6,171,534 B22001
- System and method of aligning scintillator crystalline structures for computed tomography imaging20US 6,480,563 B2GE Medical Systems Global Technology Company, LLC · 2002
- Electro-acoustic transducer and method of manufacturing such a transducer16US 4,029,911 AU. S. Philips Corporation · 1977
- Manufacturing device for producing a multi-layer molded product15US 5,618,567 ASumitomo Chemical Company, Limited · 1997