E04C 2002/345
With triangular corrugations
Official title: {with triangular corrugations}
E04C2002/345 (With triangular corrugations) appears on 36 US grants and 28 published applications in this corpus.
Search patents in E04C- Granted patents
- 36
- Published applications
- 28
- Assignees
- 24
- Inventors
- 68
- Latest grant
- 2 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 4 |
| 2004 | 0 | 1 |
| 2005 | 1 | 3 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 1 | 2 |
| 2011 | 0 | 2 |
| 2012 | 2 | 1 |
| 2013 | 1 | 2 |
| 2014 | 0 | 1 |
| 2015 | 1 | 2 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 2 | 1 |
| 2019 | 2 | 2 |
| 2020 | 1 | 0 |
| 2021 | 1 | 2 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Core layer having wood elements, in particular wood elements having a corrugated structure2 Dec 2025US 12,486,664 B2Wood Innovations Ltd
- Structured panel with non-parallel cavity walls25 May 2021US 11,014,331 B2Rohr, Inc.
- Core layer having wood elements, in particular wood elements having a corrugated structure27 Oct 2020US 10,814,936 B2Wood Innovations Ltd
- Multi-functional composite structure for extreme environments15 Oct 2019US 10,442,559 B2The Boeing Company
- Systems, devices, and/or methods for constructing towers13 Aug 2019US 10,378,207 B2
- Structured panel with non-parallel cavity walls11 Feb 2021US 2021/0039349 A1Rohr, Inc.
- Core layer having wood elements, in particular wood elements having a corrugated structure11 Feb 2021US 2021/0039750 A1Wood Innovations Ltd
- Insulating and storm-resistant panels22 Aug 2019US 2019/0257108 A1Storm Strong LLC
- Core layer having wood elements, in particular wood elements having a corrugated structure10 Jan 2019US 2019/0009862 A1Wood Innovations Ltd
- Multi-functional composite structure for extreme environments8 Feb 2018US 2018/0037342 A1The Boeing Company
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
- Reusable concrete form panel sheeting65US 5,792,552 AProvidence Industries, L.L.C. · 1998
- Light-weight, high-strength, stiff panels56US 5,547,737 ADunlop Limited · 1996
- Truss-core corrugation for compressive loads52US 4,769,968 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 1988