E21D 11/403
Combined with the head machine
Official title: {combined with the head machine}
E21D11/403 (Combined with the head machine) appears on 14 US grants and 12 published applications in this corpus.
Search patents in E21D- Granted patents
- 14
- Published applications
- 12
- Assignees
- 11
- Inventors
- 36
- Latest grant
- 31 Jan 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 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 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 2 | 3 |
| 2016 | 1 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 3 | 3 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Device and method for continuously driving a tunnel31 Jan 2023US 11,566,522 B2Herrenknecht AG
- Tunnel boring machine backup train comprising means for conveying an arch segment12 May 2020US 10,648,335 B2Bouygues Travaux Publics
- Device and method for the automated picking up and laying of a segment to form a lining of a tunnel12 Nov 2019US 10,472,962 B2Bouygues Travaux Publics
- Tunnelling machine20 Aug 2019US 10,385,618 B2
- Method and system of coal mine roof stabilization12 Feb 2019US 10,202,848 B2REI, Inc.
- Device and method for continuously driving a tunnel4 Feb 2021US 2021/0032991 A1Herrenknecht AG
- Device and method for the automated picking up and laying of a segment to form a lining of a tunnel1 Aug 2019US 2019/0234214 A1Bouygues Travaux Publics
- Method and system of coal mine roof stabilization23 May 2019US 2019/0153862 A1REI, Inc.
- Tunnel boring machine backup train comprising means for conveying an arch segment3 Jan 2019US 2019/0003305 A1Bouygues Travaux Publics
- Tunnelling machine2 Aug 2018US 2018/0216406 A1
Most cited
By later US patents
- Automatic grid layout system22US 5,816,750 AThe Tensar Corporation · 1998
- Device for provisionally consolidating a gallery and suitable consolidating frame3US 4,263,005 AVereinigte Osterreichische Eisen- und Stahlwerke-Alphine Montan Aktiengesellschaft · 1981
- Tunnelling machine2US 10,385,618 B22019
- Mine roof support equipment2US 3,978,675 ACoal Industry (Patents) Limited · 1976
- Roof prop and platform movably mounted on boom of tunnelling machine2US 4,101,173 ACoal Industry (Patents) Limited · 1978