E04C 2003/043
The hollow cross-section comprising at least one enclosed cavity
Official title: {the hollow cross-section comprising at least one enclosed cavity}
E04C2003/043 (The hollow cross-section comprising at least one enclosed cavity) appears on 291 US grants and 200 published applications in this corpus.
Search patents in E04C- Granted patents
- 291
- Published applications
- 200
- Assignees
- 149
- Inventors
- 404
- Latest grant
- 16 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 5 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 10 | 0 |
| 1986 | 5 | 0 |
| 1987 | 9 | 0 |
| 1988 | 5 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 7 | 0 |
| 1995 | 11 | 0 |
| 1996 | 9 | 0 |
| 1997 | 9 | 0 |
| 1998 | 8 | 0 |
| 1999 | 6 | 0 |
| 2000 | 10 | 0 |
| 2001 | 12 | 2 |
| 2002 | 14 | 12 |
| 2003 | 7 | 7 |
| 2004 | 10 | 21 |
| 2005 | 6 | 7 |
| 2006 | 4 | 15 |
| 2007 | 6 | 10 |
| 2008 | 1 | 13 |
| 2009 | 6 | 11 |
| 2010 | 8 | 11 |
| 2011 | 7 | 15 |
| 2012 | 7 | 12 |
| 2013 | 10 | 4 |
| 2014 | 10 | 5 |
| 2015 | 2 | 6 |
| 2016 | 4 | 4 |
| 2017 | 4 | 1 |
| 2018 | 9 | 9 |
| 2019 | 3 | 7 |
| 2020 | 4 | 8 |
| 2021 | 5 | 7 |
| 2022 | 6 | 2 |
| 2023 | 6 | 3 |
| 2024 | 2 | 2 |
| 2025 | 3 | 4 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Light steel structural members148US 8,225,581 B2Sur-Stud Structural Technology Inc. · 2012
- Sheet metal structural shape and use in building structures109US 4,507,901 A1985
- Folding telescopic prefabricated framing units for non-load-bearing walls107US 5,735,100 A527233 B.C. Ltd. · 1998
- Structure of lightweight bars and connector means therefore105US 4,069,638 AScanovator AB · 1978
- Reinforcing member with thermally expansible structural reinforcing material and directional shelf105US 6,253,524 B1Sika Corporation · 2001