E04B 2001/8476
With acoustical cavities, with or without acoustical filling
Official title: {with acoustical cavities, with or without acoustical filling}
E04B2001/8476 (With acoustical cavities, with or without acoustical filling) appears on 205 US grants and 181 published applications in this corpus.
Search patents in E04B- Granted patents
- 205
- Published applications
- 181
- Assignees
- 155
- Inventors
- 447
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 9 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 0 | 0 |
| 1984 | 8 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 6 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 3 |
| 2002 | 2 | 2 |
| 2003 | 2 | 1 |
| 2004 | 4 | 8 |
| 2005 | 0 | 7 |
| 2006 | 1 | 5 |
| 2007 | 1 | 6 |
| 2008 | 3 | 7 |
| 2009 | 2 | 6 |
| 2010 | 4 | 3 |
| 2011 | 3 | 7 |
| 2012 | 3 | 3 |
| 2013 | 8 | 6 |
| 2014 | 9 | 11 |
| 2015 | 7 | 5 |
| 2016 | 5 | 8 |
| 2017 | 8 | 8 |
| 2018 | 7 | 9 |
| 2019 | 6 | 17 |
| 2020 | 5 | 10 |
| 2021 | 12 | 8 |
| 2022 | 8 | 11 |
| 2023 | 12 | 18 |
| 2024 | 6 | 3 |
| 2025 | 6 | 6 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Sound insulating element and a suspended ceiling system6 Jan 2026US 12,516,523 B2Saint-Gobain Ecophon AB
- Perforated acoustic panel, method of producing, and use of the same28 Oct 2025US 12,455,072 B2Knauf Gips KG
- Dimensionally stable building panel21 Oct 2025US 12,448,774 B2AWI Licensing LLC
- Method for manufacturing acoustical elements9 Sep 2025US 12,409,584 B2Saint-Gobain Ecophon AB
- Sound absorber8 Apr 2025US 12,270,165 B2Sealed Air Verpackungen GmbH
- Composite building panel16 Jul 2026US 2026/0200799 A1Armstrong World Industries, Inc.
- Metabarrier for sound mitigation16 Apr 2026US 2026/0105903 A1Temple University of the Commonwealth System of Higher Education
- Method for manufacturing acoustic panels19 Mar 2026US 2026/0077531 A1Armstrong World Industries, Inc.
- Pane-based acoustic system18 Dec 2025US 2025/0384864 A1The Regents of the University of Michigan
- Dual channel acoustic baffle coupler and related methods of use13 Nov 2025US 2025/0347106 A1
Most cited
By later US patents
- Heat and sound insulating structure for boarding or other non-loadbearing wall79US 4,434,592 ASMAC Acieroid · 1984
- Acoustical panels61US 4,574,099 A1986
- Sound attenuating laminate for jet aircraft engines58US 4,926,963 AUAS Support, Inc. · 1990
- Acoustic construction panel51US 5,125,475 ALes Materiaux Cascades Inc. · 1992
- Airborne-sound-absorbing wall or ceiling paneling46US 4,347,912 A1982