E04C 2/34
Composed of two or more spaced sheet-like parts
Official title: composed of two or more spaced sheet-like parts (E04C2/32 takes precedence; spacers for cavity walls E04B2/44)
E04C2/34 (Composed of two or more spaced sheet-like parts) appears on 1,032 US grants and 935 published applications in this corpus.
Search patents in E04C- Granted patents
- 1,032
- Published applications
- 935
- Assignees
- 579
- Inventors
- 1,788
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 22 | 0 |
| 1977 | 23 | 0 |
| 1978 | 15 | 0 |
| 1979 | 13 | 0 |
| 1980 | 12 | 0 |
| 1981 | 17 | 0 |
| 1982 | 14 | 0 |
| 1983 | 9 | 0 |
| 1984 | 7 | 0 |
| 1985 | 11 | 0 |
| 1986 | 18 | 0 |
| 1987 | 7 | 0 |
| 1988 | 8 | 0 |
| 1989 | 12 | 0 |
| 1990 | 17 | 0 |
| 1991 | 17 | 0 |
| 1992 | 16 | 0 |
| 1993 | 17 | 0 |
| 1994 | 17 | 0 |
| 1995 | 25 | 0 |
| 1996 | 22 | 0 |
| 1997 | 18 | 0 |
| 1998 | 22 | 0 |
| 1999 | 20 | 0 |
| 2000 | 17 | 0 |
| 2001 | 25 | 6 |
| 2002 | 13 | 25 |
| 2003 | 20 | 24 |
| 2004 | 20 | 43 |
| 2005 | 12 | 29 |
| 2006 | 17 | 49 |
| 2007 | 12 | 25 |
| 2008 | 8 | 51 |
| 2009 | 14 | 51 |
| 2010 | 19 | 39 |
| 2011 | 28 | 37 |
| 2012 | 30 | 40 |
| 2013 | 31 | 39 |
| 2014 | 28 | 48 |
| 2015 | 45 | 50 |
| 2016 | 31 | 60 |
| 2017 | 42 | 59 |
| 2018 | 35 | 29 |
| 2019 | 35 | 51 |
| 2020 | 41 | 34 |
| 2021 | 27 | 47 |
| 2022 | 25 | 24 |
| 2023 | 27 | 26 |
| 2024 | 22 | 22 |
| 2025 | 21 | 22 |
| 2026 | 8 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E04C 2/36Spaced apart by transversely-placed strip material497
- E04C 2/3405Spaced apart by profiled spacer sheets226
- E04C 2002/3488Spaced apart by frame like structuresIndexing code89
- E04C 2002/3494Apparatus for making profiled spacer sheetsIndexing code26
- E04C 2002/3477Spaced apart by tubular elements parallel to the sheetsIndexing code18
- E04C 2002/3483Spaced apart by spacers stamped from the sheetsIndexing code10
Recent patents
- Construction panel8 Sep 2026US D1,147,463 S1Amp IP LLC · Design
- System for producing a three-dimensionally deformed plate1 Sep 2026US 12,722,322 B2Homann Holzwerkstoffe GmbH
- Dynamic insulation system for switchable building envelope25 Aug 2026US 12,716,232 B2The Regents of the University of Colorado, a body corporate
- Prefabricated construction wall assembly16 Jun 2026US 12,655,630 B2Wall to Wall, LLC
- Panelized structural wall, floor, and roof panel9 Jun 2026US 12,650,017 B1Cover Technologies, Inc.
- Ventilated structural panels and method of construction with ventilated structural panels6 Aug 2026US 2026/0226740 A1
- Modular construction system involving fitting and locking parts together30 Jul 2026US 2026/0218506 A1
- Process for producing a plate-shaped building material with moisture-absorbing properties11 Jun 2026US 2026/0158469 A1
- Diamond-shaped structural beam assembly for use in a foam filled structural plank14 May 2026US 2026/0132626 A1Plank Structural Systems LLC
- W-shaped structural beam assembly for use in a foam filled structural plank14 May 2026US 2026/0132628 A1Plank Structural Systems LLC
Most cited
By later US patents
- Cushioning structure215US 5,518,802 A1996
- Lightweight honeycomb panel structure212US 5,445,861 AThe Boeing Company · 1995
- Compact vacuum insulation176US 5,157,893 AMidwest Research Institute · 1992
- Compact vacuum insulation174US 5,175,975 AMidwest Research Institute · 1993
- Sheet-like sandwich molding144US 4,631,221 AHoechst Aktiengesellschaft · 1986