E04B 2001/8423
Tray or frame type panels or blocks, with or without acoustical filling
Official title: {Tray or frame type panels or blocks, with or without acoustical filling}
E04B2001/8423 (Tray or frame type panels or blocks, with or without acoustical filling) appears on 282 US grants and 171 published applications in this corpus.
Search patents in E04B- Granted patents
- 282
- Published applications
- 171
- Assignees
- 172
- Inventors
- 480
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 5 | 0 |
| 1978 | 13 | 0 |
| 1979 | 6 | 0 |
| 1980 | 11 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 9 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 8 | 0 |
| 1999 | 6 | 0 |
| 2000 | 11 | 0 |
| 2001 | 6 | 0 |
| 2002 | 5 | 3 |
| 2003 | 1 | 3 |
| 2004 | 2 | 0 |
| 2005 | 1 | 1 |
| 2006 | 1 | 3 |
| 2007 | 1 | 4 |
| 2008 | 1 | 7 |
| 2009 | 1 | 6 |
| 2010 | 3 | 1 |
| 2011 | 4 | 5 |
| 2012 | 1 | 3 |
| 2013 | 5 | 5 |
| 2014 | 6 | 6 |
| 2015 | 9 | 14 |
| 2016 | 5 | 4 |
| 2017 | 5 | 5 |
| 2018 | 4 | 10 |
| 2019 | 9 | 19 |
| 2020 | 12 | 11 |
| 2021 | 14 | 21 |
| 2022 | 12 | 7 |
| 2023 | 16 | 16 |
| 2024 | 18 | 10 |
| 2025 | 7 | 6 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Acoustic material frame and method20 Jan 2026US 12,529,223 B2
- Wall assembly and a soundproof booth18 Nov 2025US 12,473,730 B2Framer Oy
- Ballistic sound reducing panel28 Oct 2025US 12,455,145 B1LJ Avalon LLC
- 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
- Wall mounting system26 Feb 2026US 2026/0055601 A1
- Sound insulation sheet member and sound insulation structure using same17 Jul 2025US 2025/0230650 A1Mitsubishi Chemical Corporation
- Piece of furniture provided with a noise-absorbing composite panel5 Jun 2025US 2025/0178735 A1Safran Seats
- Sound insulation sheet, manufacturing method thereof, and sound insulation structure22 May 2025US 2025/0166596 A1Mitsubishi Chemical Corporation
- Office pod and a soundproofing wall structure20 Feb 2025US 2025/0059756 A1Framery Oy
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
- Acoustic panel98US 5,009,043 AHerman Miller, Inc. · 1991
- Noise-shielding panel for engine95US 4,456,092 ANissan Motor Co., Ltd. · 1984
- Sound absorbing panel82US 4,084,367 AHaworth Mfg., Inc. · 1978