E21D 11/102
Removable shuttering
Official title: {Removable shuttering; Bearing or supporting devices therefor}
E21D11/102 (Removable shuttering) appears on 41 US grants and 24 published applications in this corpus.
Search patents in E21D- Granted patents
- 41
- Published applications
- 24
- Assignees
- 32
- Inventors
- 113
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 1 | 2 |
| 2018 | 3 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 2 | 4 |
| 2022 | 2 | 0 |
| 2023 | 0 | 2 |
| 2024 | 3 | 4 |
| 2025 | 3 | 2 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Work carriage for the lining of tunnels30 Jun 2026US 12,669,054 B2Hinfra S.R. L.
- Automated method and processing train for lining tunnels21 Apr 2026US 12,607,122 B2Hinfra S.R. L.
- Adjustable marginal wall for form panels used for casting castable material and method of casting castable material2 Dec 2025US 12,486,679 B2Msp Structures Inc.
- Method of and system for in-situ creation of concrete arches8 Jul 2025US 12,352,167 B1BluCor Contracting, Inc.
- Modular tunnel formwork device11 Mar 2025US 12,247,488 B2Kern Tunneltechnik SA
- Self-launching formwork system and method for lining a tunnel17 Sep 2026US 2026/0275865 A1Grupo Empresarial Tecozam SL
- Slipform blade and method for applying pre-compression strain to cast-in-place concrete on well walls12 Feb 2026US 2026/0043330 A1China University of Mining and Technology
- Movable formwork system for cladding part of a tunnel22 Jan 2026US 2026/0022637 A1Grupo Empresarial Tecozam SL
- Travelling formwork for concrete forming of a tunnel19 Jun 2025US 2025/0198285 A1Grupo Empresarial Tecozam SL
- Work carriage for the lining of tunnels22 May 2025US 2025/0163806 A1Hinfra S.R. L.
Most cited
By later US patents
- Shield tunneling method and assembling and disassembling apparatus for use in practicing the method22US 4,808,030 AShimizu Construction Co., Ltd. · 1989
- Form for making a permanent concrete mine stopping21US 5,167,474 AJohn Kennedy Metal Products & Buildings · 1992
- Form for concrete-placement tunnel lining17US 4,856,936 AHochtief Aktiengesellschaft Vorm. Gebr. Helfmann · 1989
- Collapsible tunnel liner section and method of lining a tunnel15US 4,124,985 A1978
- Shuttering and shoring wall12US 4,730,427 ACompagnie Francois d'Entreprises CFE S.A. · 1988