E04B 2001/8428
Containing specially shaped acoustical bodies
Official title: {containing specially shaped acoustical bodies, e.g. funnels, egg-crates, fanfolds}
E04B2001/8428 (Containing specially shaped acoustical bodies) appears on 77 US grants and 41 published applications in this corpus.
Search patents in E04B- Granted patents
- 77
- Published applications
- 41
- Assignees
- 41
- Inventors
- 119
- Latest grant
- 6 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 3 |
| 2009 | 0 | 0 |
| 2010 | 2 | 0 |
| 2011 | 1 | 2 |
| 2012 | 0 | 1 |
| 2013 | 2 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 2 |
| 2019 | 2 | 6 |
| 2020 | 3 | 3 |
| 2021 | 7 | 11 |
| 2022 | 4 | 2 |
| 2023 | 2 | 0 |
| 2024 | 5 | 3 |
| 2025 | 3 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Composition for sound insulating sheet member, sound insulating sheet member, and sound insulating structure body6 May 2025US 12,291,007 B2Mitsubishi Chemical Corporation
- Sound insulation sheet member and sound insulation structure using same22 Apr 2025US 12,281,470 B2Mitsubishi Chemical Corporation
- Sound insulation sheet, manufacturing method thereof, and sound insulation structure25 Feb 2025US 12,236,929 B2Mitsubishi Chemical Corporation
- Sound insulation sheet member and sound insulation structure using same31 Dec 2024US 12,180,701 B2Mitsubishi Chemical Corporation
- Acoustic device thermoforming4 Jun 2024US 12,000,140 B2The Regents of the University of Michigan
- Sound insulation sheet member and sound insulation structure using same17 Jul 2025US 2025/0230650 A1Mitsubishi Chemical Corporation
- Sound insulation sheet, manufacturing method thereof, and sound insulation structure22 May 2025US 2025/0166596 A1Mitsubishi Chemical Corporation
- Composition for sound insulating sheet member, sound insulating sheet member, and sound insulating structure body8 Feb 2024US 2024/0042742 A1Mitsubishi Chemical Corporation
- Sound insulation sheet member and sound insulation structure using same8 Feb 2024US 2024/0044131 A1Mitsubishi Chemical Corporation
- Sound insulation sheet member and sound insulation structure using same1 Feb 2024US 2024/0035273 A1Mitsubishi Chemical Corporation
Most cited
By later US patents
- Acoustical panel103US 4,226,299 AAlphadyne, Inc. · 1980
- Acoustic/shock wave attenuating assembly103US 5,394,786 ASuppression Systems Engineering Corp. · 1995
- Bulk acoustic absorber panels for use in high speed gas flow environments48US 4,313,524 ARohr Industries, Inc. · 1982
- Noise attenuation panel43US 4,241,806 A1980
- Acoustic/shock wave attenuating assembly43US 5,225,622 A1993