E04C 2/32
Formed of corrugated or otherwise indented sheet-like material
Official title: formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material
E04C2/32 (Formed of corrugated or otherwise indented sheet-like material) appears on 443 US grants and 421 published applications in this corpus.
Search patents in E04C- Granted patents
- 443
- Published applications
- 421
- Assignees
- 276
- Inventors
- 775
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 7 | 0 |
| 1978 | 8 | 0 |
| 1979 | 5 | 0 |
| 1980 | 7 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 7 | 0 |
| 1987 | 6 | 0 |
| 1988 | 7 | 0 |
| 1989 | 6 | 0 |
| 1990 | 8 | 0 |
| 1991 | 13 | 0 |
| 1992 | 2 | 0 |
| 1993 | 6 | 0 |
| 1994 | 9 | 0 |
| 1995 | 7 | 0 |
| 1996 | 3 | 0 |
| 1997 | 8 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 8 | 0 |
| 2001 | 4 | 2 |
| 2002 | 8 | 7 |
| 2003 | 3 | 6 |
| 2004 | 8 | 12 |
| 2005 | 6 | 13 |
| 2006 | 2 | 7 |
| 2007 | 1 | 8 |
| 2008 | 2 | 6 |
| 2009 | 8 | 23 |
| 2010 | 9 | 19 |
| 2011 | 8 | 13 |
| 2012 | 11 | 13 |
| 2013 | 14 | 20 |
| 2014 | 11 | 22 |
| 2015 | 22 | 22 |
| 2016 | 9 | 21 |
| 2017 | 18 | 29 |
| 2018 | 13 | 19 |
| 2019 | 27 | 41 |
| 2020 | 20 | 17 |
| 2021 | 15 | 27 |
| 2022 | 18 | 22 |
| 2023 | 17 | 17 |
| 2024 | 14 | 10 |
| 2025 | 20 | 12 |
| 2026 | 7 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatus for aligning corrugated decking18 Aug 2026US 12,709,907 B2Innovatech Systems, LLC
- Modular building construction4 Aug 2026US 12,698,632 B2L2U Group Pty Ltd
- Composite element and method of manufacturing the same2 Jun 2026US 12,643,297 B2Patria Aerostructures Oy
- Panel structure manufacturing device and panel structure manufacturing method2 Jun 2026US 12,644,282 B2Mitsubishi Heavy Industries, Ltd.
- Building method17 Feb 2026US 12,553,239 B2NuRoc Engineering Technologies, LLC
- A planar member27 Aug 2026US 2026/0249582 A1Nature Architects Inc.
- Modular construction and structural panels therefor23 Jul 2026US 2026/0210113 A1
- Fully assembled storage room18 Jun 2026US 2026/0168233 A1Zhejiang Shedex Industrial and Trading Co., Ltd.
- Reinforcing structure of toolshed18 Jun 2026US 2026/0168235 A1Zhejiang Shedex Industrial and Trading Co., Ltd.
- Connecting structure between wall panels and wall panel assemmbly18 Jun 2026US 2026/0168242 A1Zhejiang Shedex Industrial and Trading Co., Ltd.
Most cited
By later US patents
- Sheet-like sandwich molding144US 4,631,221 AHoechst Aktiengesellschaft · 1986
- Stiffened composite structural member and method of fabrication131US 4,086,378 AMcDonnell Douglas Corporation · 1978
- Three dimensionally reinforced fabric concrete112US 4,617,219 A1986
- Cellular core structure providing gridlike bearing surfaces on opposing parallel planes of the formed core102US 5,028,474 A1991
- Modular panel for mold94US 4,695,033 AShin Nihon Kohan Co., Ltd. · 1987