E21D 9/065
With devices for provisionally supporting the front face
Official title: {with devices for provisionally supporting the front face}
E21D9/065 (With devices for provisionally supporting the front face) appears on 10 US grants and 2 published applications in this corpus.
Search patents in E21D- Granted patents
- 10
- Published applications
- 2
- Assignees
- 6
- Inventors
- 15
- Latest grant
- 15 Aug 2017
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 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 | 1 | 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 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Barrier forming apparatus15 Aug 2017US 9,732,612 B2
- Method and device for transporting overburden away during tunnelling13 Dec 2016US 9,518,465 B2Herrenknecht AG
- Tunnelling machine22 Aug 1995US 5,443,305 AHeierli & Co.
- Shield for tunneling and mining1 Jun 1982US 4,332,508 APhilipp Holzmann Aktiengesellschaft
- Slideway means and excavating machines comprising slideway means1 Dec 1981US 4,303,275 ACoal Industry (Patents) Limited
Most cited
By later US patents
- Articulated boom-dipper-bucket assembly for a tunnel boring machine19US 4,203,626 AZokor Corporation · 1980
- Cutter unit assemblies for excavating machines and to excavating machines including cutter unit assemblies17US 4,302,054 ACoal Industry (Patents) Limited · 1981
- Tunnelling machine6US 3,961,825 A1976
- Tunnelling machine6US 5,443,305 AHeierli & Co. · 1995
- Conveyor mounted excavator1US 4,283,090 AThe Robbins Company · 1981