E21D 11/40
Devices or apparatus specially adapted for handling or placing units of linings
Official title: Devices or apparatus specially adapted for handling or placing units of linings {or supporting units} for tunnels or galleries {(combined with tunnelling shields E21D9/06)}
E21D11/40 (Devices or apparatus specially adapted for handling or placing units of linings) appears on 85 US grants and 65 published applications in this corpus.
Search patents in E21D- Granted patents
- 85
- Published applications
- 65
- Assignees
- 78
- Inventors
- 232
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 6 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 2 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 2 |
| 2013 | 1 | 2 |
| 2014 | 3 | 5 |
| 2015 | 6 | 7 |
| 2016 | 4 | 2 |
| 2017 | 5 | 6 |
| 2018 | 3 | 4 |
| 2019 | 6 | 7 |
| 2020 | 5 | 4 |
| 2021 | 3 | 6 |
| 2022 | 4 | 3 |
| 2023 | 2 | 6 |
| 2024 | 4 | 1 |
| 2025 | 5 | 3 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 3D printing-based device for shield tunnel lining formation8 Sep 2026US 12,728,588 B2Zhejiang University City College
- Pipe transport device and pipe joining method inside pipeline construction shaft22 Apr 2025US 12,281,727 B2Kubota Corporation
- Tunnel excavation device25 Mar 2025US 12,258,864 B2Komatsu Ltd.
- Modular tunnel formwork device11 Mar 2025US 12,247,488 B2Kern Tunneltechnik SA
- Automatic leveling carbon fiber reinforced polymer (CFRP) plate pre-stressing and tensioning devices for curved surface structures25 Feb 2025US 12,234,661 B1Fujian University of Technology
- Controlling mesh installation based on a mesh deformation parameter1 Oct 2026US 2026/0298088 A1Sandvik Mining and Construction Oy
- Tunnel construction method and machine9 Apr 2026US 2026/0098474 A1MACCAFERRI TUNNELING S.r.l.
- 3D Printing-Based Device for Shield Tunnel Lining Formation2 Oct 2025US 2025/0303633 A1Zhejiang University City College
- Jacking system for excavation construction of cross passage and construction method using the same4 Sep 2025US 2025/0277447 A1Ningbo Yonggong Technology Co., Ltd.
- Device for providing braids, system comprising the device and method for providing braids4 Sep 2025US 2025/0277448 A1Geobrugg AG
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
- Automatic grid layout system22US 5,816,750 AThe Tensar Corporation · 1998
- Tunnel-driving and support system17US 5,076,729 AGebr. Eichoff Maschinenfabrik · 1991
- Methods of and apparatus for applying roof mats to mine workings16US 4,122,682 A1978
- Ceiling panel placing machine15US 4,682,926 AMorrison-Knudsen Company, Inc. · 1987