E04B 2001/8281
Flat elements mounted parallel to a supporting surface with an acoustically active
Official title: {Flat elements mounted parallel to a supporting surface with an acoustically active air gap between the elements and the mounting surface}
E04B2001/8281 (Flat elements mounted parallel to a supporting surface with an acoustically active) appears on 46 US grants and 41 published applications in this corpus.
Search patents in E04B- Granted patents
- 46
- Published applications
- 41
- Assignees
- 38
- Inventors
- 91
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 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 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 3 |
| 2009 | 0 | 1 |
| 2010 | 3 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 1 | 2 |
| 2015 | 3 | 3 |
| 2016 | 0 | 2 |
| 2017 | 1 | 1 |
| 2018 | 0 | 3 |
| 2019 | 5 | 3 |
| 2020 | 0 | 1 |
| 2021 | 5 | 4 |
| 2022 | 1 | 2 |
| 2023 | 6 | 5 |
| 2024 | 1 | 0 |
| 2025 | 1 | 1 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Acoustical building panel and surface covering systems utilizing the same14 Apr 2026US 12,601,170 B2AWI Licensing LLC
- Energy transmission control mount23 Sep 2025US 12,422,011 B2Pliteq Inc.
- Sound transmission control in cross laminated timber construction26 Mar 2024US 11,939,778 B2Pliteq Inc.
- Acoustic insulation product comprising a backing layer14 Nov 2023US 11,814,836 B2Saint-Gobain Isover
- Noise reduction apparatus and method of making and using the same5 Sep 2023US 11,746,523 B2Knoll, Inc.
- Removable profile fastening and insulation system14 May 2026US 2026/0132616 A1
- Metabarrier for sound mitigation16 Apr 2026US 2026/0105903 A1Temple University of the Commonwealth System of Higher Education
- Modular acoustic pod1 Jan 2026US 2026/0002356 A1Ecolution Design LLC.
- Pane-based acoustic system18 Dec 2025US 2025/0384864 A1The Regents of the University of Michigan
- Energy transmission control mount30 Nov 2023US 2023/0383809 A1Pliteq Inc.
Most cited
By later US patents
- Airborne-sound-absorbing wall or ceiling paneling46US 4,347,912 A1982
- Sound absorbing and diffusing unit, an acoustic screen and a decorative sound absorbing panel30US 4,207,964 A1980
- Sound-absorbing glass building component or transparent synthetic glass building component30US 5,700,527 AFraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e. V. · 1997
- Plate resonator30US 5,975,238 AFraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e. V. · 1999
- Sound deadening laminate27US 3,985,198 AFirma Carl Freudenberg · 1976