E21D 23/0463
Hanging or shifting means for tubes, electric feeding cables or the like
Official title: {Hanging or shifting means for tubes, electric feeding cables or the like}
E21D23/0463 (Hanging or shifting means for tubes, electric feeding cables or the like) appears on 5 US grants and 1 published applications in this corpus.
Search patents in E21D- Granted patents
- 5
- Published applications
- 1
- Assignees
- 3
- Inventors
- 4
- Latest grant
- 3 Dec 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 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 | 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 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Longwall mine construction method N003 Dec 2019US 10,494,924 B2
- Apparatus for mining a seam, in particular of coal12 Dec 1995US 5,474,365 A
- Canopy and shield structure for a supporting shield in a seam-like mine deposit30 Jan 1979US 4,136,999 AThyssen Industrie AG
- Canopy and shield structure for supporting a shield in a seam-like mine deposit16 May 1978US 4,089,181 AThyssen Industrie AG
- Hydraulic shield assembly27 Dec 1977US 4,064,701 AHerman Hemscheidt Maschinenfabrik GmbH & Co.
Most cited
By later US patents
- Apparatus for mining a seam, in particular of coal10US 5,474,365 A1995
- Canopy and shield structure for supporting a shield in a seam-like mine deposit3US 4,089,181 AThyssen Industrie AG · 1978
- Canopy and shield structure for a supporting shield in a seam-like mine deposit3US 4,136,999 AThyssen Industrie AG · 1979
- Longwall mine construction method N002US 10,494,924 B22019
- Hydraulic shield assembly1US 4,064,701 AHerman Hemscheidt Maschinenfabrik GmbH & Co. · 1977