E04B 2001/848
The cavities opening onto the face of the element
Official title: {the cavities opening onto the face of the element}
E04B2001/848 (The cavities opening onto the face of the element) appears on 149 US grants and 131 published applications in this corpus.
Search patents in E04B- Granted patents
- 149
- Published applications
- 131
- Assignees
- 113
- Inventors
- 340
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 6 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 6 | 0 |
| 1985 | 0 | 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 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 3 |
| 2002 | 2 | 1 |
| 2003 | 2 | 1 |
| 2004 | 3 | 6 |
| 2005 | 0 | 4 |
| 2006 | 1 | 2 |
| 2007 | 1 | 5 |
| 2008 | 3 | 4 |
| 2009 | 1 | 4 |
| 2010 | 3 | 2 |
| 2011 | 1 | 3 |
| 2012 | 2 | 3 |
| 2013 | 5 | 4 |
| 2014 | 6 | 6 |
| 2015 | 4 | 4 |
| 2016 | 3 | 3 |
| 2017 | 5 | 7 |
| 2018 | 6 | 8 |
| 2019 | 4 | 12 |
| 2020 | 3 | 9 |
| 2021 | 11 | 7 |
| 2022 | 6 | 10 |
| 2023 | 9 | 12 |
| 2024 | 6 | 3 |
| 2025 | 5 | 5 |
| 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
- 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
- Molded body, sound absorbing material, vibration absorbing material18 Feb 2025US 12,227,938 B2Tosoh Corporation
- 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
- Decorative acoustic building panels16 Oct 2025US 2025/0319686 A1Turf Design, Inc.
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