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E04D 2001/307

For passages in the roof surface

Official title: {for passages in the roof surface}

E04D2001/307 (For passages in the roof surface) appears on 18 US grants and 18 published applications in this corpus.

Search patents in E04D

Granted patents: 18
Published applications: 18
Assignees: 10
Inventors: 39
Latest grant: 3 Mar 2026

Filings by year

E04D 2001/307: granted patents and published applications per publication year
Year	Granted patents	Published applications
1978	1	0
1979	0	0
1980	0	0
1981	0	0
1982	0	0
1983	0	0
1984	0	0
1985	0	0
1986	0	0
1987	0	0
1988	0	0
1989	1	0
1990	0	0
1991	2	0
1992	0	0
1993	0	0
1994	0	0
1995	0	0
1996	0	0
1997	0	0
1998	0	0
1999	0	0
2000	0	0
2001	0	0
2002	0	0
2003	0	0
2004	0	1
2005	0	0
2006	1	0
2007	0	2
2008	0	0
2009	1	3
2010	0	0
2011	2	0
2012	0	2
2013	2	0
2014	1	3
2015	1	0
2016	1	1
2017	0	1
2018	1	0
2019	0	1
2020	1	1
2021	1	1
2022	0	0
2023	0	0
2024	0	2
2025	1	0
2026	1	0

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

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