E04B 1/345
Structures deriving their rigidity from concertina folds
Official title: {Structures deriving their rigidity from concertina folds}
E04B1/345 (Structures deriving their rigidity from concertina folds) appears on 96 US grants and 87 published applications in this corpus.
Search patents in E04B- Granted patents
- 96
- Published applications
- 87
- Assignees
- 53
- Inventors
- 157
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 0 |
| 2003 | 2 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 4 |
| 2010 | 0 | 0 |
| 2011 | 2 | 2 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 3 | 7 |
| 2015 | 3 | 5 |
| 2016 | 4 | 7 |
| 2017 | 2 | 6 |
| 2018 | 4 | 3 |
| 2019 | 5 | 5 |
| 2020 | 6 | 8 |
| 2021 | 5 | 10 |
| 2022 | 7 | 12 |
| 2023 | 5 | 7 |
| 2024 | 4 | 1 |
| 2025 | 5 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Foldable portable building97US 5,596,844 A1997
- Folding shed64US 8,763,315 B22014
- Expandable structure and sequence of expansion63US 5,345,730 A1994
- Portable and collapsible building structure61US 5,107,639 A1992
- Advanced surgical suite for trauma casualties (AZTEC)59US 5,964,065 ASan Jose State University Foundation · 1999