E04C 2002/3444
Corrugated sheets
Official title: {Corrugated sheets}
E04C2002/3444 (Corrugated sheets) appears on 129 US grants and 139 published applications in this corpus.
Search patents in E04C- Granted patents
- 129
- Published applications
- 139
- Assignees
- 79
- Inventors
- 232
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 2 |
| 2002 | 4 | 5 |
| 2003 | 4 | 8 |
| 2004 | 1 | 2 |
| 2005 | 1 | 8 |
| 2006 | 3 | 4 |
| 2007 | 1 | 1 |
| 2008 | 0 | 12 |
| 2009 | 1 | 10 |
| 2010 | 2 | 8 |
| 2011 | 6 | 7 |
| 2012 | 8 | 10 |
| 2013 | 9 | 8 |
| 2014 | 4 | 8 |
| 2015 | 7 | 5 |
| 2016 | 4 | 5 |
| 2017 | 1 | 4 |
| 2018 | 5 | 2 |
| 2019 | 3 | 10 |
| 2020 | 5 | 4 |
| 2021 | 3 | 6 |
| 2022 | 2 | 3 |
| 2023 | 3 | 3 |
| 2024 | 2 | 2 |
| 2025 | 5 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System for producing a three-dimensionally deformed plate1 Sep 2026US 12,722,322 B2Homann Holzwerkstoffe GmbH
- Panel10 Mar 2026US 12,570,221 B2Kyoraku Co., Ltd.
- Core layer having wood elements, in particular wood elements having a corrugated structure2 Dec 2025US 12,486,664 B2Wood Innovations Ltd
- Method for manufacturing cladding elements for use in construction24 Jun 2025US 12,337,503 B2Politecnico Di Milano
- Modular wall panel with integrated channels24 Jun 2025US 12,338,626 B1
- Composite structural panel and method of fabrication13 Feb 2025US 2025/0052019 A1Composites Intellectual Holdings, Inc.
- Articles including a spacer and articles including a slit film and processes for making and using the articles9 Jan 2025US 2025/0010569 A13M Innovative Properties Company
- System For Producing A Three-Dimensionally Deformed Plate14 Nov 2024US 2024/0375311 A1Homann Holzwerkstoffe GmbH
- A structural component for supporting construction panels and a wall comprising the same20 Jun 2024US 2024/0200332 A1Saint-Gobain Placo
- Panel14 Dec 2023US 2023/0398953 A1Kyoraku Co., Ltd.
Most cited
By later US patents
- Composite airfoil construction124US 4,051,289 AGeneral Electric Company · 1977
- Composite building material118US 6,941,720 B2James Hardie International Finance B. V. · 2005
- Composite structural building panels and connections systems106US 6,314,704 B1American Structural Composites, Inc. · 2001
- Reusable concrete form panel sheeting65US 5,792,552 AProvidence Industries, L.L.C. · 1998
- Laminated composite building component64US 6,205,728 B12001