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E21D 11/05

Using compressible insertions

Official title: using compressible insertions

E21D11/05 (Using compressible insertions) appears on 15 US grants and 10 published applications in this corpus.

Search patents in E21D

Granted patents: 15
Published applications: 10
Assignees: 12
Inventors: 46
Latest grant: 7 Mar 2023

Filings by year

E21D 11/05: 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	0	0
1990	0	0
1991	2	0
1992	0	0
1993	0	0
1994	1	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	0
2005	0	1
2006	0	0
2007	0	0
2008	1	0
2009	0	0
2010	0	0
2011	0	0
2012	0	1
2013	0	0
2014	0	0
2015	1	1
2016	0	0
2017	1	1
2018	0	1
2019	1	2
2020	3	1
2021	2	0
2022	1	1
2023	1	1

By publication year. Applications have been published since 2001.

Recent patents

Tunnel protection structure suitable for active fault areas and high ground stress areas7 Mar 2023US 11,598,210 B1Institute of Geology and Geophysics, Chinese Academy of Sciences
Tunnel adaptive lining structure in complex environment and construction method thereof15 Nov 2022US 11,499,427 B2China Institute of Water Resources and Hydropower Research
Frost-resistant assembled initial support structure of tunnel and construction method thereof16 Nov 2021US 11,174,730 B2Southwest Jiaotong University
Removable and replaceable anchored tunnel gasket23 Mar 2021US 10,954,668 B2Vertex, Inc.
Asymmetric coordinated support device for gob side entry based on combination of flexibility and rigidity15 Dec 2020US 10,865,641 B1

Most cited

By later US patents