E21D 23/086
Details of fixing devices therefor
Official title: {Details of fixing devices therefor}
E21D23/086 (Details of fixing devices therefor) appears on 6 US grants and 0 published applications in this corpus.
Search patents in E21D- Granted patents
- 6
- Published applications
- 0
- Assignees
- 6
- Inventors
- 20
- Latest grant
- 3 Nov 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 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 | 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 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Apparatus for protecting roof tray when gob-side entry retaining end support migrates3 Nov 2020US 10,822,949 B1China Mining & Civil New Material Science and Technology Ltd.
- Travelling bracket11 Dec 1984US 4,487,531 ABochumer Eisenh/u/ tte Heintzmann GmbH & Co. KG
- Mine roof support19 Jan 1982US 4,311,417 AFletcher Sutcliffe Wild Limited
- Mineral mining installation14 Oct 1980US 4,227,833 AGewerkschaft Eisenhutte Westfalia
- Mine roof supports13 Feb 1979US 4,139,325 AFletcher Sutcliffe Wild Limited
No published applications in this class yet.
Most cited
By later US patents