E04C 2002/3472
With multiple layers of profiled spacer sheets
Official title: {with multiple layers of profiled spacer sheets}
E04C2002/3472 (With multiple layers of profiled spacer sheets) appears on 61 US grants and 58 published applications in this corpus.
Search patents in E04C- Granted patents
- 61
- Published applications
- 58
- Assignees
- 25
- Inventors
- 110
- Latest grant
- 2 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 3 |
| 2002 | 2 | 4 |
| 2003 | 4 | 5 |
| 2004 | 1 | 0 |
| 2005 | 1 | 3 |
| 2006 | 2 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 4 |
| 2009 | 0 | 2 |
| 2010 | 1 | 4 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 3 |
| 2014 | 0 | 3 |
| 2015 | 3 | 4 |
| 2016 | 0 | 1 |
| 2017 | 2 | 7 |
| 2018 | 5 | 3 |
| 2019 | 4 | 6 |
| 2020 | 5 | 1 |
| 2021 | 1 | 3 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 0 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
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- Composite structural panel and method of fabrication13 Feb 2025US 2025/0052019 A1Composites Intellectual Holdings, Inc.
- 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.
- Core layer having wood elements, in particular wood elements having a corrugated structure11 Feb 2021US 2021/0039750 A1Wood Innovations Ltd
Most cited
By later US patents