E04C 2002/3455
With trapezoidal corrugations
Official title: {with trapezoidal corrugations}
E04C2002/3455 (With trapezoidal corrugations) appears on 75 US grants and 78 published applications in this corpus.
Search patents in E04C- Granted patents
- 75
- Published applications
- 78
- Assignees
- 39
- Inventors
- 105
- Latest grant
- 2 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 1 |
| 2002 | 3 | 4 |
| 2003 | 4 | 3 |
| 2004 | 1 | 0 |
| 2005 | 0 | 3 |
| 2006 | 1 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 9 |
| 2009 | 0 | 5 |
| 2010 | 1 | 6 |
| 2011 | 6 | 7 |
| 2012 | 7 | 7 |
| 2013 | 7 | 7 |
| 2014 | 3 | 3 |
| 2015 | 3 | 4 |
| 2016 | 3 | 2 |
| 2017 | 1 | 2 |
| 2018 | 4 | 1 |
| 2019 | 2 | 4 |
| 2020 | 3 | 2 |
| 2021 | 1 | 3 |
| 2022 | 0 | 0 |
| 2023 | 1 | 2 |
| 2024 | 1 | 0 |
| 2025 | 3 | 1 |
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
- Modular wall panel with integrated channels24 Jun 2025US 12,338,626 B1
- Shaping structure, composite part comprising such a shaping structure, method for manufacturing such a composite part14 Jan 2025US 12,194,719 B2Porcher Industries
- Composite structural panel and method of fabrication29 Oct 2024US 12,129,611 B2Composites Intellectual Holdings, Inc.
- Composite structural panel and method of fabrication4 Apr 2023US 11,619,014 B2Composites Intellectual Holdings, Inc.
- Composite structural panel and method of fabrication13 Feb 2025US 2025/0052019 A1Composites Intellectual Holdings, Inc.
- Shaping structure, composite part comprising such a shaping structure, method for manufacturing such a composite part7 Dec 2023US 2023/0391044 A1Porcher Industries
- Composite structural panel and method of fabrication7 Sep 2023US 2023/0279624 A1Composites Intellectual Holdings, Inc.
- Composite structural panel and method of fabrication22 Apr 2021US 2021/0115633 A1Composites Intellectual Holdings, Inc.
- Structured panel with non-parallel cavity walls11 Feb 2021US 2021/0039349 A1Rohr, Inc.
Most cited
By later US patents
- 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
- Composite board structure and a method of and an apparatus for producing the board structure51US 4,150,186 ANissan Motor Co., Ltd. · 1979
- Energy absorbing fiberglass sandwich panel with corrugated core44US 5,791,118 A1998
- Wall panel43US 4,037,379 A1977