E04B 2001/8471
With non-planar interior transition surfaces between layers
Official title: {with non-planar interior transition surfaces between layers, e.g. faceted, corrugated}
E04B2001/8471 (With non-planar interior transition surfaces between layers) appears on 39 US grants and 28 published applications in this corpus.
Search patents in E04B- Granted patents
- 39
- Published applications
- 28
- Assignees
- 30
- Inventors
- 85
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 2 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 3 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 1 |
| 2016 | 0 | 1 |
| 2017 | 0 | 3 |
| 2018 | 2 | 1 |
| 2019 | 2 | 2 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 1 | 3 |
| 2023 | 1 | 1 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus and system for dynamic high NRC acoustic locking wall tile and methods thereof28 Oct 2025US 12,456,446 B2Turf Design, Inc.
- Incombustible sound absorption panel9 Jan 2024US 11,866,931 B2Shizuka Co., Ltd.
- Acoustic system and method28 Nov 2023US 11,830,468 B2Auralex Acoustics
- Acoustic system and method22 Feb 2022US 11,257,474 B2Auralex Acoustics
- Heated floor and ceiling panel with a corrugated layer for modular use in buildings6 Jul 2021US 11,054,148 B2Innovative Building Technologies, LLC
- Apparatus and system for dynamic high nrc acoustic locking wall tile and methods thereof23 Apr 2026US 2026/0112350 A1Turf Design, Inc.
- Incombustible sound absorption panel18 May 2023US 2023/0151605 A1Shizuka Co., Ltd.
- Multilayer acoustic and shock absorbing cushion1 Dec 2022US 2022/0381027 A1Web-Pro Corporation
- Apparatus and system for dynamic high nrc acoustic locking wall tile and methods thereof4 Aug 2022US 2022/0246126 A1Turf Design, Inc.
- Acoustic system and method12 May 2022US 2022/0148552 A1Auralex Acoustics
Most cited
By later US patents
- Heat and sound insulating structure for boarding or other non-loadbearing wall79US 4,434,592 ASMAC Acieroid · 1984
- Noise attenuation panel43US 4,241,806 A1980
- Structural sound absorbing panel for underwater use and methods of making same41US 4,083,159 AHitco · 1978
- Method of manufacturing a sandwich board and a sound insulating structure40US 6,290,021 B1Sika AG, vorm. Kaspar Winkler & Co. · 2001
- Acoustical room paneling and method of installation35US 5,923,002 AOwens Corning Fiberglas Technology, Inc. · 1999